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Showing posts with label Tech Story. Show all posts
Showing posts with label Tech Story. Show all posts

Monday, 4 October 2010

Penyerangan Worm.Win32.Stuxnet.

JAKARTA, KOMPAS.com - Indonesia tercatat menjadi negara tertinggi kedua yang di dunia yang terinfeksi Stuxnet, malware (malicious software) alias program jahat jenis worm yang tengah merajalela di dunia saat ini. Demikian hasil analisis Kaspersky Lab, pengembang solusi keamanan terkemuka yang berpusat di Rusia.

Stuxnet, sebuah worm komputer Windows spesifik pertama kali ditemukan pada bulan Juni 2010 oleh sebuah perusahaan keamanan yang berasal dari Belarus. Worm ini menjadi terkenal karena merupakan worm pertama yang memata-matai dan memprogram ulang sistem industri. Belakangan ini, serangan worm Stuxnet telah menimbulkan banyak spekulasi dan diskusi mengenai maksud dan tujuan, asal, dan – yang terpenting - identitas dari penyerang dan targetnya.

Kaspersky Lab belum melihat cukup bukti untuk mengidentifikasi penyerang atau targetnya, tetapi Kaspersky dapat mengkonfirmasikan bahwa ini adalah satu-satunya serangan malware canggih yang didukung dengan biaya besar, tim penyerang dengan keahlian tinggi dan pengetahuan teknologi SCADA yang baik.

"Serangan-serangan ini dapat digunakan sebagai alat untuk perang dunia maya atau terorisme dunia maya atau sabotase dunia maya yang bergantung pada sumber serangan dan targetnya. Sejauh ini apa yang telah kita lihat mengenai Stuxnet lebih cenderung digunakan sebagai alat untuk melakukan sabotase. Kaspersky Lab tidak dalam posisi untuk mengomentari sisi politik dari serangan ini," ujar Eugene Kaspersky, Co-founder and Chief Executive Officer of Kaspersky Lab dalam rilis persnya akhir pekan lalu.

Berdasarkan geografis penyebaran Stuxnet; Iran, India dan Indonesia memimpin dalam hal infeksi sejauh ini. Namun, epidemi Stuxnet (seperti epidemi lainnya) tidak statis; worm ini secara terus menerus menyebar, dan sementara beberapa sistem tetap terinfeksi, banyak dari sistem tersebut telah dibersihkan. Negara yang paling rentan serangan ini adalah India dengan jumlah serangan mencapai 86.258 unit komputer. Indonesia di pisisi kedua dengan korban34.138 komputer.

Tujuan utama worm ini adalah untuk mengakses Simatic WinCC SCADA, yang digunakan sebagai sistem pengendali industri dan bertugas untuk mengawasi dan mengendalikan industri, infrastruktur, atau proses-proses berbasis fasilitas. Sistem serupa digunakan secara luas pada pengilangan minyak, pembangkit tenaga listrik, sistem komunikasi yang besar, bandar udara, perkapalan, dan bahkan instalasi militer secara global.

Pengetahuan mendalam tentang teknologi SCADA, kecanggihan serangan yang berlapis-lapis, penggunaan beberapa kerentanan zero-day dan sertifikat yang sah membawa kita kepada pemahaman bahwa Stuxnet diciptakan oleh tim yang terdiri dari para profesional dengan keahlian yang sangat terampil dan memiliki sumber daya dan dukungan finansial yang besar. Target serangan dan wilayah yang dijangkiti oleh worm ini (terutama Iran) menyiratkan bahwa mereka bukanlah kelompok penjahat dunia maya biasa. Lebih jauh lagi, ahli keamanan Kaspersky yang menganalisa kode worm tersebut menegaskan bahwa tujuan utama Stuxnet bukan untuk memata-matai sistem yang terinfeksi tetapi untuk melakukan sabotase.

Para peneliti di Kaspersky Lab menemukan bahwa worm tersebut mengeksploitasi dua dari empat kerentanan zero-day yang telah dilaporkan langsung kepada Microsoft. Analis Kaspersky telah bekerja sama dengan Microsoft untuk memastikan kelancaran dari peluncuran patch, serta memastikan pelanggan terlindungi dan memperoleh informasi mengenai serangan tersebut. Semua produk Kaspersky Lab telah berhasil mendeteksi dan menetralisir Worm.Win32.Stuxnet.


Tags : worm.win32.stuxnet , penyebaran stuxnet, virus stuxnet, anti virus stuxnet, worm stuxnet, viru ganas stuxnet, info birus stuxnet, virus-virus stuxnet ,

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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 10:04 pm

Saturday, 22 August 2009

Analisa Scanner Virus Conficker. Ada yang sudah tau!!!

Mega Test 5 Tools Conficker Network Detection (wwww.vaksin.com, 29 April 2009)

Seiring dengan maraknya Swine Flu (Flu Babi) yang menyerang manusia dan menurut WHO sudah pada taraf kegentingan 4, bandara di seluruh dunia langsung bersiaga memantau para penumpang dari Meksiko dan Amerika Serikat. Kalau di dunia komputer yang menjadi sumber penyebaran virus adalah file yang terinfeksi virus, maka di dunia nyata, yang terinfeksi virus dan menjadi sarana penyebaran virus adalah manusia. Karena itu bandara menerapkan scanning atas penumpang yang dicurigai mengidap flu dengan menggunakan scanner suhu tubuh karena pengidap flu (apapun jenisnya) pasti mengalami peningkatan suhu tubuh karena badannya bereaksi atas adanya virus asing yang masuk. Sebenarnya prinsip di dunia komputer juga sama, kalau bandara menggunakan scanner suhu tubuh maka ?bandara? di internet adalah router-router dan aplikasi yang digunakan bukan scanner tubuh manusia melainkan Firewall. Tetapi ada satu keunggulan yang dimiliki oleh dunia IT dibandingkan dunia manusia (jika dibandingkan) saat ini, dimana pada dunia manusia tidak mungkin (sangat sulit dan mahal) untuk dapat memantau seluruh manusia di satu kota dan menentukan siapa saja yang terinfeksi flu. Kalau di dunia IT kita bisa menggunakan scanner khusus untuk mendeteksi komputer mana saja yang terinfeksi virus sehingga dapat dilakukan antisipasi yang cepat dan efektif untuk menghadapi masalah virus.

Setelah melakukan test terhadap beberapa tools untuk membasmi Conficker, langkah berikutnya yang paling krusial jika anda administrator jaringan adalah mengidentifikasi komputer mana saja yang terinfeksi virus dan berusaha menyebarkan virus. Karena itu, Vaksincom melakukan pengetesan terhadap tools untuk mendeteksi komputer di jaringan yang terinfeksi Conficker dan berusaha melakukan penyebaran terhadap komputer dalam jaringan. Jika kita hanya melakukan pembersihan terhadap satu komputer saja tentu tidak masalah, tetapi bagaimana jika dalam jaringan anda terinfeksi komputer tetapi anda tidak tahu komputer mana yang terinfeksi, karena terkadang komputer yang menginfeksi jaringan kita tidak terduga-duga, misalnya komputer notebook yang sering dibawa pulang oleh pimpinan atau bagian yang sering dinas luar. Selain itu, jika kita memvonis komputer tertentu terinfeksi virus, tentunya kita harus memiliki bukti.

Conficker dan gejala (dalam jaringan….)

Jika pada mega test sebelumnya dijelaskan gejala conficker pada komputer tsb, maka kali ini kita harus mengatahui apa dampak conficker pada jaringan, sebagai berikut :

ü Berusaha mendownload dan mencoba akses pada 250 domain (conficker B) atau 50.000 domain (conficker C) yang random. Berikut beberapa domain yang random tsb :

aaidhe.net

barhkuuu.cn

cfhlglxofyz.biz

dtosuhc.org

elivvks.info

fsrljjeemkr.cc

gbmkghqcqy.ch

hudphigb.net

iqrzamxo.ws

jjhajbfcdmk.com

dst………………

ü Berusaha akses ke beberapa domain yang umum untuk mengecek waktu saat ini. Beberapa domain tsb yaitu :

baidu.com

google.com

yahoo.com

msn.com

ask.com

w3.org

aol.com

cnn.com

ebay.com

msn.com

myspace.com

facebook.com

rapidshare.com

ü Pada dasarnya virus ini berusaha melakukan penyebaran melalui default share windows menggunakan port 445, tetapi selain itu Conficker juga menggunakan port 1024 s/d 10000 untuk melakukan penyebaran pada jaringan komputer.

The Tools, Conficker Network Detection…

Dari beberapa tools yang ada, Vaksincom melakukan pengetesan beberapa tools yang familiar dan sering digunakan. Tools tsb dikeluarkan oleh beberapa vendor security untuk membantu mempermudah deteksi dari serangan Conficker pada jaringan anda.

Berikut beberapa tools yang tersedia sebagai berikut :


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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 1:25 am

Hati-hati ada jenis Conficker Baru lagi!!! Pasang update terus Antivirusnya ya???

Sepanjang malam tanggal 8 hingga 9 April, komputer-komputer yang terinfeksi Trojan-Downloader.Win32.Kido (Conficker.c) saling melakukan kontak melalui P2P, dan memerintahkan mesin-mesin yang terinfeksi untuk mengunduh file-file jahat, termasuk mengaktifkan Kido botnet.

Varian terbaru Kido berubah secara signifikan dari varian-varian sebelumnya: sekali lagi, malware kini adalah worm. Analisa awal memberitahukan bahwa fungsi Kido mempunyai keterbatasan waktu hingga 3 Mei 2009.
Dalam mengunduh update untuk dirinya sendiri, Kido juga mengunduh dua file baru untuk menginfeksi mesin-mesin. Salah satunya adalah aplikasi antivirus jahat (yang terdeteksi sebagai FraudTool.Win32.SpywareProtect2009.s) disebarluaskan dari sebuah situs yang berlokasi di Ukraina. Ketika dijalankan, program ini menawarkan untuk menghapus ‘detected viruses’ dengan biaya US$ 49.95.

File kedua yang diunduh Kido untuk menginfeksi sistem adalah Email-Worm.Win32.Iksmas.atz. Email worm ini dikenal sebagai Waledac, dan dapat mencuri data serta mengirimkan sampah. Ketika program jahat ini pertama kali terdeteksi pada Januari 2009, banyak ahli Teknologi Informasi mencatat kesamaan antara Kido dan Iksmas. Epidemi Kido serupa dengan skala epidemic email yang disebabkan oleh Iksmas.

“Selama lebih dari 12 jam, Iksmas terkoneksi dengan pusat kendalinya di seluruh dunia yang beberapa kali menerima perintah untuk mengirimkan email sampah. Dalam masa hanya 12 jam, satu bot mengirimkan lebih dari 42,298 email sampah,” komentar Aleks Gostex, Kepala Tim Riset dan Analisa Global, Kaspersky Lab untuk situasi ini. “Secara virtual, setiap email berisi domain unik. Hal ini dengan jelas dilakukan untuk mencegah filter anti-spam dari pendeteksian email masal yang menggunakan metode analisa berkala dengan domain khusus. Secara keseluruhan, kami mendeteksi penggunaan 40,542 domain tingkat ketiga dan 33 domain tingkat kedua. Secara virtual, seluruh situs ini berlokasi di China dan teregistrasi atas nama berbagai orang, yang kebanyakan dibuat-buat.

“Kalkulasi sederhana menunjukkan bahwa satu Iksmas bot mengirim sebanyak 80,000 email dalam waktu 24 jam. Dengan asumsi terdapat 5 juta mesin yang terinfeksi diluar sana, berarti botnet dapat mengirim sekitar 400 miliar pesan sampah dalam jangka waktu 24 jam!”

Kaspersky Lab is currently carrying out a detailed analysis of the new Kido variant. The company’s experts are working on a new version of the KKiller utility, dengan mempertimbangkan fungsi spesifik dari worm versi terbaru tersebut.
Pengguna produk Kaspersky Lab tidak perlu khawatir, versi terbaru worm Kido (Net-Worm.Win32.Kido.js) yang telah terdeteksi secara heuristic sejak awal (sebagai HEUR:Worm.Win32.Generic) memiliki varian Iksmas yang diunduhnya.

sumber : http://penerbitdatakom.com
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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 1:22 am

Thursday, 16 July 2009

Mau tahu caranya proses transaksi agen isi pulsa???

Saat ini, pengguna ponsel di Indonesia telah mencapai sekitar enampuluh juta orang dan cenderung terus meningkat. Kebutuhan akan komunikasi semakin dirasakan sebagai kebutuhan pokok dalam menunjang kegiatan hidup sehari-hari.

Pada Kenyataannya, sebagian besar pengguna telpon sembilan puluh persen memilih produk kartu prabayar. Peredaran uang untuk transaksi penjualan pulsa prabayar rata-rata perbulan mencapai sekitar dua koma tujuh trilyun rupiah.

Operator seluler terus meningkatkan kinerjanya dengan memperbaiki seluruh sistem operasinya dan memperluas jangkauan wilayahnya. Pengisian pulsa secara elektronik dinilai sebagai solusi efisien dan efektif untuk penghematan biaya, memotong biaya produksi, rantai distribusi dan terhindar dari bentuk pemalsuan voucher fisik yang sering terjadi.

Dengan prospek bisnis tersebut, maka distribusi pemasaran pulsa elektrik akan mendapat tempat yang sangat menjanjikan untuk mendapat keuntungan yang cukup lumayan.

= KELEBIHAN BISNIS SERVER PULSA ELEKTRIK =

RESIKO KECIL

Pulsa merupakan kebutuhan utama yang mudah laku, tidak rusak, tidak ada batas waktu kadaluarsa, tidak perlu transportasi hanya dengan SMS untuk distribusi barangnya.

PANGSA PASAR LUAS

Pengguna telpon seluler/hp sangat banyak, hampir setiap orang sekarang menggunakan ponsel mulai tukang sayur, tukang ojek, pembantu rt, jurangannya, bos-nya juragannya pokoknya semua hampir pake ponsel lah.

BERLAKU DI SELURUH INDONESIA

Anda dapat jualan pulsa ke seluruh wilayah Indonesia selama ada sinyal untuk transaksi.

TIDAK PERLU TEMPAT KHUSUS

Server anda tidak memerlukan tempat yang strategis cukup dirumah/ di kontrakan/ di kos-kosan dll, karena distribusinya gak perlu bensin.

UNTUNG BISA MAXIMAL

Server pulsa dapat diarahkan kemana aja untuk mendapatkan keuntungan maximal. Server dapat diarahkan ke sumber pulsa termurah dan menjual ke pasar termahal.

MODAL KECIL

Modal dibutuhkan pada saat anda membeli server pulsa/ software saja. Sedangkan modal pulsa didapat dari deposit Agen/Dealer/Reseller Anda. (tapi hati2 jangan suka ngasih bon/bayarnya tempo bisa bobol lo… gak percaya coba aja!)

KEUNTUNGAN BESAR

Selama pulsa tetap sebagai barang komoditi (tidak diberikan secara gratis) maka bisnis ini akan memberikan keuntungan yang relatif besar.

BALIK MODAR… eh MODAL CEPAT

Karena perputaran uang sangat cepat dengan keuntungan 2,63% perhari dari modal pulsa yang di putar, nih.. analisanya dari salah satu pembuat server pulsa ASUMSI SETELAH 2 BULAN USAHA BERJALAN-SEDOOOT!!!

= NAH… SERVER PULSA NIH BUAT SOPO THO? =

Anda mempunyai usaha jual pulsa elektrik. Anda membeli pulsa elektrik dari distributor dalam bentuk chip Mkios, SEV, Simpati Autorefill, Dompet Pulsa atau dari pengusaha isi pulsa / sub distributor lewat SMS dan kemudian anda mengecerkannya kembali ke toko-toko Hp/pengecer pulsa elektrik.

Konter/Toko/pengecer pulsa elektrik itu menaruh deposit sebelum memulai transaksi. Dalam pemesanannya konter/toko/pengecer pulsa elektik itu mengirimkan pulsa SMS dalam format tertentu dan Anda memprosesnya secara manual.

Karena proses manual tersebut mengandalkan tenaga manusia yang rentan terhadap kekeliruan maka Anda membutuhkan komputer dan software yang berfungsi menggantikan operator sehingga fungsi menerima sms mencatat transaksi mengirimkan pesanan, membuat laporan bisa ditangani oleh software tersebut.

INTINYA : Server pulsa ini meringankan kerja jempol anda. Dan fungsi jempol diganti oleh Server ini. Coba anda bayangkan jika anda transaksi 500trx/hari aja. Sudah bisa dipastikan besoknya anda bakal opname karena jempolnya kriting laughing

contoh-topologinya












Topologinya kurang lebihnya spt ini

Untuk yang sederhana dan mak nyus spek-nya :

* 1 HP Siemens C55 untuk Center (terima perintah sms)
* 1 HP Siemens C55 untuk Sender (balasan sms/repply)
* 1 HP Siemens C55 untuk M-Kios (Telkomsel)
* 1 HP Siemens C55 untuk Dompet Pulsa (XL)
* 1 HP Siemens C55 untuk SEV (Indosat)
* 1 HP Siemens C55 untuk All Operator (NusaPro, Trikomsel, EzyLoad dll)
* 1 Modem untuk koneksi Host to host ke Distributor Pulsa Elektrik (Si-ipul, Datacell, DKPP, Trikomsel dll)

c55
*HP tidak harus pake Siemens, beda pembuat server bisa beda HP yg dipake.

* Host to host transaksi server pulsa kita ke distributor pulsa lewat internet, jadi server kita nyambung ama servernya si distributor host to host tsb bukan pake SMS.

Untuk spek yang paling parah alias paling minim :

* 1 HP Siemens C55 untuk Center (terima perintah sms)
* 1 HP Siemens C55 untuk Sender (balasan sms/repply)
* 1 HP Siemens C55 untuk All Operator (NusaPro, Trikomsel, EzyLoad dll)

Keterangan :
Center dan Sender bisa diisi kartu XL / IM3 / AS atau terserah anda asalkan cari yg biaya sms antar operatornya murah syukur gratis, ini untuk mengirit biaya operasional sms agen/diler dan anda.

HARGA SERVER PULSA ELEKTRIK

Murah dan Mahalnya Server pulsa bisa disebabkan spesifikasi komputer yang dipakai (rakitan/bil-ap seperti : HP/DELL) atau bisa juga dari komplit/tidaknya menu softwarenya dan kapasitas transaksi/harinya atau si pembuat software/server mau cari untung gede money eyes sah-sah aja… (Server Juga Hasil Karya Cipta Manusia) yang harus dihargai.
server pulsa

Kalo mau bisnis server dengan modal cekak ya komputernya ngrakit sendiri aja, software cari yang bajakan big grin… jangan yg bajakan lah…shame on you ntar restart2 terus lho malah tambah puyeng. Software pake yang buatan home industri aja, banyak kok cari di Mbah Google dipasaran sekitar 2 jutaan (versi home industri) ada kok dan udah mak nyus… kalo untuk kelas kampung RT/RW kabupaten dan kota software server ini sudah cukup mumpuni… (asal banyak berdoa aja praying)

Jadi modal anda cuman beli komputer jangkrik + HP bekas C55 atau lainnya dan kabel data + software yg asal jalan daripada pencet2 tombol sudah bisa jadi server pulsa elektrik. Untuk deposit ke Dealer tarik aja dari calon agen/diler anda, gitu aja kok repot thumbs up

Well…, Kedepannya diharapkan 1 kampung ada 1 server pulsa elektrik, kaya RT/RW-Net tapi ini pulsa, jadi RT/RW-Pulsa wekekeke…Blog Iseng

Fasilitas Menu Server (beda software beda menu) :

Di sisi Agen/Reseller bisa

* Cek Deposit
* Cek Harga
* Ganti PIN
* Rekap Tranksaksi
* Registrasi Agen
* Transfer Deposit dll (tergantung masing2 pembuat)

Di sisi Dealer/Distributor (TERSERAH MAU DISEBUT APA)

* Rekap Transaksi
* Laporan SMS Masuk / Keluar
* Rekap komisi /Dealer Master Agen
* Laporan penjualan Harian
* Seting Harga Pulsa
* Laporan rugi laba
* Penambahan deposit Agen
* Monitoring Transaksi dll

Di sisi Server

* Administrasi
* Monitoring
* Autorefill
* Registrasi
* PC client
* Transfer Deposit
* MLM
* Host to Host (H2H), YM dll

AdmPlus

Yang punya software diatas siap2 kebanjiran order yah… tapi ingat jangan Takabur ya…shame on you………big grin

BELI SERVER-nya dimana tho?

Penjual server/software pulsa elektrik sebenarnya banyak ada yang berwujud perusahaan dan ada juga yang home industri happy ini ada beberapa link ke situs mereka anda bisa berkunjung ke webnya (tapi ingat bro… kita gak dapat fee/persenan dari mereka babar blas ini murni niat baik buat memeriahkan dunia server pulsa elektrik di Indonesia lho… nih link-nya (ada beberapa biar adil winking rejeki ada yang ngatur…) isinya komplit ada kontak personnya tinggal anda nego sendiri dengan mereka.

Daftar Pustaka :

* Multichip
* Elektra
* Quintum
* Voucha
* Semarsoftware
* softwareserverpulsa
* servere123
* softwarepulsa
* bla…bla…bla…
* dll di Googling ajah yah… :D

KALO SERVER-nya udah siyap terus ngapain ya…?

Cari “Dealer Indosat” buat cari Chip SEV, ke “XL Kita” buat chip Dompet Pulsa, meluncur ke “Dealer Telkomsel” buat cari chip M-Kios di daerah anda. Kalo sdh dapat chipnya isi saldonya dan colokan ke HP dan server. Untuk Flexi Fren dan lain2nya bisa nebeng ke all operator lain misal : NusaPro, Trikomsel dll di daerah anda. Untuk Host to Host bisa joinan ama yang buat server (biasanya mereka juga buat all operator) atau ke DKPP, Trikomsel, Telesindo dan lain2 disesuaikan dengan software servernya.

Untuk Solo/Surakarta : Dealer Indosat (SEV) = Colokin ke Phone House, EzyLoad, Tri Tunggal Sentosa, Nusa Teknik dll; Dealer Telkomsel (M-Kios) = Colokin ke Leo Phone, Prima Phone, Mitra Sejati, Jala Kencana, AG, dll ; Dealer XL (Dompet Pulsa) = cari yang ada plangnya XL KITA, ALL Operator (Flexi/Fren dll) = Colokin ke Nusa Pro, Trikomsel dll; Host To Host = tanya sama penjualnya server Host To Host nya bisane suprot kemana aja?

Link ke Web Operator Seluler :
telkomsel ; indosat ; XL ; mobile-8 ; three ; ceriaku ; flexi ; esia ; smart ; axis ; hepi

* **Hati2 ama salesnya dealer, cari info kalo bisa punya orang dalam jadi diskon2/bonus2 untuk anda bisa sampai ke anda full gak diembat salesnya!!! atau bahkan sales managernya/kepala cabang atau apalah istilahnya money eyes.

Tips & Trik : ke Dealer2 diatas jangan bangga bilang kita punya server apalagi Telkomsel bisa dipersulit stoknya ntar… dan lagi Dealer2 tersebut biasanya punya All Operator juga so… takut kesaing aja D. Jadi cukup daftar bilang aja ini dari konternya si Telogodog Cell di ujung jalan sempit bla… bla… bla… biar lancar tanpa curiga… (ini di Solo ya… gak tahu kalo di luar Solo)

Sedangkan koneksi internet anda bisa pake ISP atau Speedy dan disesuaikan dengan kebutuhan server anda, kalo cuma buat ambil stok ke server H2H doang cukup pake Speedy Personal/ISP dengan Bandwidth up to 64Kbps, kalo anda menjual via H2H juga, anda harus pake ISP/Speedy dengan IP Publik/ tergantung dari si pembuat servernya gimana enaknya koneksinya lah…

MASALAH STOK PULSA

Saat ini yang paling ribet masalah stok pulsa cuman M-Kios Telkomsel. Yang lain sistem stoknya pake deposit, jadi anda tinggal isi deposit ke SEV/Dompul sejumlah tertentu sudah bisa buat transaksi semua nominal, tinggal deposit anda berkurang setiap dilakukan transaksi. Sedangkan Telkomsel sistemnya unit, jadi anda harus pesan misal Simpati 20rb = 100 unit/biji dan unit ini akan berkurang setiap dilakukan transaksi. Belum lagi kena pembatasan regional, jadi misal M-Kios anda terdaftar di wilayah Jawa Tengah, anda tidak boleh mengisi untuk nomer2 Telkomsel diluar Jawa Tengah, kalo itu dilakukan nomer M-Kios anda akan di suspend/hangus. Tapi semua bisa diakali, pembuat server pasti sudah punya jurus-jurus pamungkas untuk mengatasi masalah tersebut.

*Dari kebijakan nyleneh dan konyol dari Telkomsel ini akhirnya bisa dimanfaatkan dengan baik oleh para pesaingnya applause

Oke kayanya segitu dulu… besok ditambah-tambahin lagi… pelajari baik2 bisnisnya sebelum nyemplung dan selamat berbisnis server pulsa elektrik dan jadi juragan pulsa elektrik… amin…

source : http://solocybercity.wordpress.com
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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 5:41 am

Friday, 16 May 2008

Spam turning 30 this month; no gifts, please


The date: May 3, 1978. The culprit: Gary Thuerk, a marketer for the old Digital Equipment Corporation. His crime: Sending a sales e-mail to 393 users on Arpanet (then a U.S. government computer network and the predecessor of today's Internet). Little did Thuerk know that he'd just become the world's first spammer.

That first piece of junk e-mail (which wasn't called "spam" until about 15 years later) has been memorialized over at Brad Templeton's Web site (Templeton is a Net pioneer, the creator of the legendary rec.humor.funny Usenet group, and chairman of the Eletronic Frontier Foundation), along with a thread of outraged replies.

So, without further ado, here you go—the world's first spam (presented in its original all-caps format):

Mail-from: DEC-MARLBORO rcvd at 3-May-78 0955-PDT
Date: 1 May 1978 1233-EDT
From: THUERK at DEC-MARLBORO
Subject: ADRIAN@SRI-KL

DIGITAL WILL BE GIVING A PRODUCT PRESENTATION OF THE NEWEST MEMBERS OF THE DECSYSTEM-20 FAMILY; THE DECSYSTEM-2020, 2020T, 2060, AND 2060T. THE DECSYSTEM-20 FAMILY OF COMPUTERS HAS EVOLVED FROM THE TENEX OPERATING SYSTEM AND THE DECSYSTEM-10 COMPUTER ARCHITECTURE. BOTH THE DECSYSTEM-2060T AND 2020T OFFER FULL ARPANET SUPPORT UNDER THE TOPS-20 OPERATING SYSTEM. THE DECSYSTEM-2060 IS AN UPWARD EXTENSION OF THE CURRENT DECSYSTEM 2040 AND 2050 FAMILY. THE DECSYSTEM-2020 IS A NEW LOW END MEMBER OF THE DECSYSTEM-20 FAMILY AND FULLY SOFTWARE COMPATIBLE WITH ALL OF THE OTHER DECSYSTEM-20 MODELS.

WE INVITE YOU TO COME SEE THE 2020 AND HEAR ABOUT THE DECSYSTEM-20 FAMILY AT THE TWO PRODUCT PRESENTATIONS WE WILL BE GIVING IN CALIFORNIA THIS MONTH. THE LOCATIONS WILL BE:

TUESDAY, MAY 9, 1978 - 2 PM
HYATT HOUSE (NEAR THE L.A. AIRPORT)
LOS ANGELES, CA

THURSDAY, MAY 11, 1978 - 2 PM
DUNFEY'S ROYAL COACH
SAN MATEO, CA
(4 MILES SOUTH OF S.F. AIRPORT AT BAYSHORE, RT 101 AND RT 92)

A 2020 WILL BE THERE FOR YOU TO VIEW. ALSO TERMINALS ON-LINE TO OTHER DECSYSTEM-20 SYSTEMS THROUGH THE ARPANET. IF YOU ARE UNABLE TO ATTEND, PLEASE FEEL FREE TO CONTACT THE NEAREST DEC OFFICE FOR MORE INFORMATION ABOUT THE EXCITING DECSYSTEM-20 FAMILY.

Thuerk's message was first greeted by a stern reprimand from one Major Raymond Czahor, chief administrator of Arpanet, followed by a long discussion thread as Arpanet users—many of whom were wary of censorship on their messaging network—mulled the impact of this first piece of junk e-mail:

"I don't see any place for advertising on the ARPAnet," user Mark Crispin wrote at the time. "Certainly not the bulk advertising of that DEC message. From the address list, it seems clear to me that the people it was sent to were the Californians listed in the last ARPAnet directory. This was a clear and flagrant abuse of the directory! I am not sure as to how far this should be carried though."

For the record, the pioneering spammer told the Wall Street Journal that his ground-breaking e-mail worked, drawing scores of leads and about $12 million in tech sales. Thuerk says he never spammed again, and he reportedly does promos for spam-fighting companies, but he's not spending any time blaming himself for the current spam epidemic. "If the airline loses your luggage do you blame the Wright brothers?" he told the Journal. I'm not sure I get the logic there, but...whatever.

Check out New Scientist Tech for an exhaustive story summarizing the history of spam and the top techniques used by spammers, including "botnets," "zombie" computers, and "word salad"—the odd literary excerpts that spammers use to fool junk mail filters.

You can also click here for our latest news and tips on beating back the flood of spam.

In the meantime...happy birthday, spam. You're looking younger every day. Sorry in advance for skipping the party.

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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 11:55 pm

Spam turning 30 this month; no gifts, please


The date: May 3, 1978. The culprit: Gary Thuerk, a marketer for the old Digital Equipment Corporation. His crime: Sending a sales e-mail to 393 users on Arpanet (then a U.S. government computer network and the predecessor of today's Internet). Little did Thuerk know that he'd just become the world's first spammer.

That first piece of junk e-mail (which wasn't called "spam" until about 15 years later) has been memorialized over at Brad Templeton's Web site (Templeton is a Net pioneer, the creator of the legendary rec.humor.funny Usenet group, and chairman of the Eletronic Frontier Foundation), along with a thread of outraged replies.

So, without further ado, here you go—the world's first spam (presented in its original all-caps format):

Mail-from: DEC-MARLBORO rcvd at 3-May-78 0955-PDT
Date: 1 May 1978 1233-EDT
From: THUERK at DEC-MARLBORO
Subject: ADRIAN@SRI-KL

DIGITAL WILL BE GIVING A PRODUCT PRESENTATION OF THE NEWEST MEMBERS OF THE DECSYSTEM-20 FAMILY; THE DECSYSTEM-2020, 2020T, 2060, AND 2060T. THE DECSYSTEM-20 FAMILY OF COMPUTERS HAS EVOLVED FROM THE TENEX OPERATING SYSTEM AND THE DECSYSTEM-10 COMPUTER ARCHITECTURE. BOTH THE DECSYSTEM-2060T AND 2020T OFFER FULL ARPANET SUPPORT UNDER THE TOPS-20 OPERATING SYSTEM. THE DECSYSTEM-2060 IS AN UPWARD EXTENSION OF THE CURRENT DECSYSTEM 2040 AND 2050 FAMILY. THE DECSYSTEM-2020 IS A NEW LOW END MEMBER OF THE DECSYSTEM-20 FAMILY AND FULLY SOFTWARE COMPATIBLE WITH ALL OF THE OTHER DECSYSTEM-20 MODELS.

WE INVITE YOU TO COME SEE THE 2020 AND HEAR ABOUT THE DECSYSTEM-20 FAMILY AT THE TWO PRODUCT PRESENTATIONS WE WILL BE GIVING IN CALIFORNIA THIS MONTH. THE LOCATIONS WILL BE:

TUESDAY, MAY 9, 1978 - 2 PM
HYATT HOUSE (NEAR THE L.A. AIRPORT)
LOS ANGELES, CA

THURSDAY, MAY 11, 1978 - 2 PM
DUNFEY'S ROYAL COACH
SAN MATEO, CA
(4 MILES SOUTH OF S.F. AIRPORT AT BAYSHORE, RT 101 AND RT 92)

A 2020 WILL BE THERE FOR YOU TO VIEW. ALSO TERMINALS ON-LINE TO OTHER DECSYSTEM-20 SYSTEMS THROUGH THE ARPANET. IF YOU ARE UNABLE TO ATTEND, PLEASE FEEL FREE TO CONTACT THE NEAREST DEC OFFICE FOR MORE INFORMATION ABOUT THE EXCITING DECSYSTEM-20 FAMILY.

Thuerk's message was first greeted by a stern reprimand from one Major Raymond Czahor, chief administrator of Arpanet, followed by a long discussion thread as Arpanet users—many of whom were wary of censorship on their messaging network—mulled the impact of this first piece of junk e-mail:

"I don't see any place for advertising on the ARPAnet," user Mark Crispin wrote at the time. "Certainly not the bulk advertising of that DEC message. From the address list, it seems clear to me that the people it was sent to were the Californians listed in the last ARPAnet directory. This was a clear and flagrant abuse of the directory! I am not sure as to how far this should be carried though."

For the record, the pioneering spammer told the Wall Street Journal that his ground-breaking e-mail worked, drawing scores of leads and about $12 million in tech sales. Thuerk says he never spammed again, and he reportedly does promos for spam-fighting companies, but he's not spending any time blaming himself for the current spam epidemic. "If the airline loses your luggage do you blame the Wright brothers?" he told the Journal. I'm not sure I get the logic there, but...whatever.

Check out New Scientist Tech for an exhaustive story summarizing the history of spam and the top techniques used by spammers, including "botnets," "zombie" computers, and "word salad"—the odd literary excerpts that spammers use to fool junk mail filters.

You can also click here for our latest news and tips on beating back the flood of spam.

In the meantime...happy birthday, spam. You're looking younger every day. Sorry in advance for skipping the party.

Share/Save/Bookmark
Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 11:55 pm

Sunday, 11 May 2008

Firewalls: Defending Your Home Network from Attack


Some people deliberately work at the task of destroying computers, and they perform their dirty deeds by installing viruses on your computer. Other nasty folks invade your computer while you're on the Internet, and they get private information from your files (or leave viruses on your computer).

Fortunately, you can protect your network from these Internet hackers by purchasing and installing a firewall. A firewall is a program that protects computers from users on other networks (remember, the Internet is another network). In fact, a firewall can protect computers from other computers, but if you have a network, you don't want to isolate your computer from the other computers on your network.

Windows XP comes with a built-in firewall, but if you have a home network, you can't use the Windows XP firewall unless you've installed the service pack SP2. (More on that shortly.)
What a firewall does

The firewall blocks communication in both directions - to and from the Internet. A firewall works by watching everything that happens on your computer that has anything to do with activity outside your computer. Unless you say that it's okay, no action can occur between your computer and another computer. That other computer could be on the Internet or on your network.

Because the firewall stops any computer from accessing your computer, you must configure the firewall software to accept communications between your computer and the other computers on your network. Doing so frees the firewall to concentrate on communications between your computer and a computer on the Internet.

Any computer that tries to access your computer is either stopped dead in its tracks or is stopped temporarily until you tell the firewall whether to let the computer gain access (depending on the way you configure the firewall's behavior).

Computers send and receive data via ports. When an intruder attempts to reach your IP address, it's really your communication ports that are being examined. In addition to the visible ports, such as your USB, your computer contains thousands of virtual ports. You can't see a virtual port because it's a software service rather than a physical connector. However, as does a physical port, a virtual port accepts and sends data.
Examining a firewall's log file

After you install a firewall program on your network, open your firewall's log file (a list of all the attempts made to access your computer) and look at the information (a command exists on the menu bar of the firewall software to accomplish this). All the computers that have tried to get into your computer are listed by their IP addresses. Go to one of the Web sites that provides reverse lookups; these sites allow you to enter an IP address, and they return the name of the offending computer.

Sometimes the IP address belongs to an Internet service provider (ISP), and it's part of a range of addresses that are assigned to that ISP. This means that a customer of that ISP, who has been assigned that IP address for his or her Internet session, is trying to get into your computer. You probably won't be able to determine the identity of the customer. However, you can notify the ISP that at a certain time on a certain date, this particular IP address was trying to break in to your computer, and the ISP can determine to whom the address was assigned at that moment. Ask the ISP to let you know what it does to resolve the problem.

You can't tell whether a snooper was trying to do some damage, either by leaving behind a virus or stealing personal information. You can only tell that the snooper has tried to hack into your computer.
Hardware firewalls in routers

If you're sharing an Internet connection, and you're using a cable or DSL modem, the easiest, most efficient, and most powerful way to share the connection is to install a router.

You can buy routers that have built-in firewalls. The firewall-enabled router sits between your modem and the rest of your network, separating the Internet and your network into two independent, unconnected networks (sort of like two armed camps). The only device that's seen from the Internet is the router, which has a firewall. All the computers on the network are invisible to the Internet.

Several router manufacturers offer routers with firewall protection, and the equipment is available with a wide variety of options. Here are some of the manufacturers who offer hardware firewall devices:

* Linksys.com

* D-Link.com

* Belkin.com

* NetGear.com

Using firewalls with Windows XP

If you've installed a software firewall, or you're using the Windows XP SP2 firewall, you'll have to disable a router's firewall. This is one case in which "the more the merrier" doesn't work.

If you haven't installed Service Pack 2 (SP2) for Windows XP, turn off the Windows XP Internet Connection Firewall (ICF) and either install a software firewall program or use a router with a firewall feature, as discussed previously. To turn off ICF, follow these steps:

1. Choose Start --> Control Panel --> Network and Internet Connections --> Network Connections.

The Network Connections folder opens, displaying an icon or listing for your Internet connection(s).

2. Right-click the Local Area Network Connection, and choose Properties.

The Properties dialog box for your connection opens.

3. Click the Advanced tab, and deselect the option to use ICF.


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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 5:21 am

Firewalls: Defending Your Home Network from Attack


Some people deliberately work at the task of destroying computers, and they perform their dirty deeds by installing viruses on your computer. Other nasty folks invade your computer while you're on the Internet, and they get private information from your files (or leave viruses on your computer).

Fortunately, you can protect your network from these Internet hackers by purchasing and installing a firewall. A firewall is a program that protects computers from users on other networks (remember, the Internet is another network). In fact, a firewall can protect computers from other computers, but if you have a network, you don't want to isolate your computer from the other computers on your network.

Windows XP comes with a built-in firewall, but if you have a home network, you can't use the Windows XP firewall unless you've installed the service pack SP2. (More on that shortly.)
What a firewall does

The firewall blocks communication in both directions - to and from the Internet. A firewall works by watching everything that happens on your computer that has anything to do with activity outside your computer. Unless you say that it's okay, no action can occur between your computer and another computer. That other computer could be on the Internet or on your network.

Because the firewall stops any computer from accessing your computer, you must configure the firewall software to accept communications between your computer and the other computers on your network. Doing so frees the firewall to concentrate on communications between your computer and a computer on the Internet.

Any computer that tries to access your computer is either stopped dead in its tracks or is stopped temporarily until you tell the firewall whether to let the computer gain access (depending on the way you configure the firewall's behavior).

Computers send and receive data via ports. When an intruder attempts to reach your IP address, it's really your communication ports that are being examined. In addition to the visible ports, such as your USB, your computer contains thousands of virtual ports. You can't see a virtual port because it's a software service rather than a physical connector. However, as does a physical port, a virtual port accepts and sends data.
Examining a firewall's log file

After you install a firewall program on your network, open your firewall's log file (a list of all the attempts made to access your computer) and look at the information (a command exists on the menu bar of the firewall software to accomplish this). All the computers that have tried to get into your computer are listed by their IP addresses. Go to one of the Web sites that provides reverse lookups; these sites allow you to enter an IP address, and they return the name of the offending computer.

Sometimes the IP address belongs to an Internet service provider (ISP), and it's part of a range of addresses that are assigned to that ISP. This means that a customer of that ISP, who has been assigned that IP address for his or her Internet session, is trying to get into your computer. You probably won't be able to determine the identity of the customer. However, you can notify the ISP that at a certain time on a certain date, this particular IP address was trying to break in to your computer, and the ISP can determine to whom the address was assigned at that moment. Ask the ISP to let you know what it does to resolve the problem.

You can't tell whether a snooper was trying to do some damage, either by leaving behind a virus or stealing personal information. You can only tell that the snooper has tried to hack into your computer.
Hardware firewalls in routers

If you're sharing an Internet connection, and you're using a cable or DSL modem, the easiest, most efficient, and most powerful way to share the connection is to install a router.

You can buy routers that have built-in firewalls. The firewall-enabled router sits between your modem and the rest of your network, separating the Internet and your network into two independent, unconnected networks (sort of like two armed camps). The only device that's seen from the Internet is the router, which has a firewall. All the computers on the network are invisible to the Internet.

Several router manufacturers offer routers with firewall protection, and the equipment is available with a wide variety of options. Here are some of the manufacturers who offer hardware firewall devices:

* Linksys.com

* D-Link.com

* Belkin.com

* NetGear.com

Using firewalls with Windows XP

If you've installed a software firewall, or you're using the Windows XP SP2 firewall, you'll have to disable a router's firewall. This is one case in which "the more the merrier" doesn't work.

If you haven't installed Service Pack 2 (SP2) for Windows XP, turn off the Windows XP Internet Connection Firewall (ICF) and either install a software firewall program or use a router with a firewall feature, as discussed previously. To turn off ICF, follow these steps:

1. Choose Start --> Control Panel --> Network and Internet Connections --> Network Connections.

The Network Connections folder opens, displaying an icon or listing for your Internet connection(s).

2. Right-click the Local Area Network Connection, and choose Properties.

The Properties dialog box for your connection opens.

3. Click the Advanced tab, and deselect the option to use ICF.


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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 5:21 am

2010: D-day for the Internet as it hits "full capacity"?

Doom-filled warnings arrive from AT&T this week. The company says that without substantial investment in network infrastructure, the Internet will essentially run out of bandwidth in just two short years.

Blame broadband, says AT&T. Decades of dealing with the trickle of bandwidth consumed by voice and dialup modems left AT&T twiddling its thumbs. The massive rise of DSL and cable modem service in the 2000s has had AT&T facing a monstrous increase in the volume of data transmissions. And that's set to increase another 50 times between now and 2015. That's enough, says AT&T, to all but crash the system.

In response, AT&T says it's investing $19 billion to upgrade the backbone of the Internet, the routers, servers, and connections where the bulk of traffic is processed.

Of course, AT&T is using this breathlessness in part to point fingers beyond simple broadband use. Web video (especially high-definition video) is the most commonly mentioned bandwidth hog. AT&T says video alone will eat up 80 percent of traffic in two years vs. just 30 percent now. One wonders how YouTube doesn't collapse under the pressure. Hmmm.

Meanwhile, many are wondering whether this is prelude to AT&T announcing (or not announcing, but doing anyway) a traffic prioritization/shaping system like Comcast has been tinkering with... and which has earned it nothing but scorn. Net neutrality (which would forbid premium pricing for certain Internet applications and destinations) is a topic that continues to be hotly debated on Capitol Hill, and telcos are anxious to kill the idea since they'd love to be able to charge additional money for different kinds of web traffic. If the whole Internet is about to crash, well, that makes AT&T's argument all the more compelling, doesn't it?

source : yahoo.com

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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 5:18 am

2010: D-day for the Internet as it hits "full capacity"?

Doom-filled warnings arrive from AT&T this week. The company says that without substantial investment in network infrastructure, the Internet will essentially run out of bandwidth in just two short years.

Blame broadband, says AT&T. Decades of dealing with the trickle of bandwidth consumed by voice and dialup modems left AT&T twiddling its thumbs. The massive rise of DSL and cable modem service in the 2000s has had AT&T facing a monstrous increase in the volume of data transmissions. And that's set to increase another 50 times between now and 2015. That's enough, says AT&T, to all but crash the system.

In response, AT&T says it's investing $19 billion to upgrade the backbone of the Internet, the routers, servers, and connections where the bulk of traffic is processed.

Of course, AT&T is using this breathlessness in part to point fingers beyond simple broadband use. Web video (especially high-definition video) is the most commonly mentioned bandwidth hog. AT&T says video alone will eat up 80 percent of traffic in two years vs. just 30 percent now. One wonders how YouTube doesn't collapse under the pressure. Hmmm.

Meanwhile, many are wondering whether this is prelude to AT&T announcing (or not announcing, but doing anyway) a traffic prioritization/shaping system like Comcast has been tinkering with... and which has earned it nothing but scorn. Net neutrality (which would forbid premium pricing for certain Internet applications and destinations) is a topic that continues to be hotly debated on Capitol Hill, and telcos are anxious to kill the idea since they'd love to be able to charge additional money for different kinds of web traffic. If the whole Internet is about to crash, well, that makes AT&T's argument all the more compelling, doesn't it?

source : yahoo.com

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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 5:18 am

Friday, 21 March 2008

Design Concept Of Asimo Honda

The People - Friendly Robot, Small Useful size

The robot's size was chosen to allow it to operate freely in the human living space and to make it people-friendly. This size allows the robot to operate l
ight switches and door knobs, and work at tables and work benches. Its eyes are located at the level of an adult's eyes when the adult is sitting in a chair. A height of 120cm makes it easy to communicate with.
Honda feels that a robot height between 120cm and that of an adult is ideal for operating in the human living space.

This info from : http://world.honda.com

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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 10:53 pm

Design Concept Of Asimo Honda

The People - Friendly Robot, Small Useful size

The robot's size was chosen to allow it to operate freely in the human living space and to make it people-friendly. This size allows the robot to operate l
ight switches and door knobs, and work at tables and work benches. Its eyes are located at the level of an adult's eyes when the adult is sitting in a chair. A height of 120cm makes it easy to communicate with.
Honda feels that a robot height between 120cm and that of an adult is ideal for operating in the human living space.

This info from : http://world.honda.com

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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 10:53 pm

The Path of Technology from Canon

Canon is Driven by its Never-Ending Dedication to Original Technologies

Canon was established in 1937 based on an ambitious vision — to build the world's best cameras.

Canon's history lies in the history of its technological developments. Canon has cultivated a wealth of optical technologies, precision-instrument technologies and electronics with the aim of achieving the ultimate in imaging performance. These disciplines have been integrated as optomechatronics technology, realized not only in Canon cameras, but also in copying machines and laser beam printers (LBPs), providing support for the company's diverse range of business operations and product lines. Canon proprietary technology has also led to the development of innovative inkjet printers and facsimile machines.

By carefully nurturing the seeds of new technology born of research discoveries, Canon continues to breathe new life into products, making the Canon name synonymous with technology innovation.


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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 10:48 pm

The Path of Technology from Canon

Canon is Driven by its Never-Ending Dedication to Original Technologies

Canon was established in 1937 based on an ambitious vision — to build the world's best cameras.

Canon's history lies in the history of its technological developments. Canon has cultivated a wealth of optical technologies, precision-instrument technologies and electronics with the aim of achieving the ultimate in imaging performance. These disciplines have been integrated as optomechatronics technology, realized not only in Canon cameras, but also in copying machines and laser beam printers (LBPs), providing support for the company's diverse range of business operations and product lines. Canon proprietary technology has also led to the development of innovative inkjet printers and facsimile machines.

By carefully nurturing the seeds of new technology born of research discoveries, Canon continues to breathe new life into products, making the Canon name synonymous with technology innovation.


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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 10:48 pm

Semiconductor Exposure Equipment

The performance of semiconductors improves on an almost daily basis. The mass production of semiconductor chips with 65 nm (1 nm is one-billionth of a meter) circuit widths is now getting underway. Canon continues to look toward the future as it develops state-of-the-art semiconductor exposure equipment designed to meet the demands of this cutting-edge industry.

Semiconductor Exposure Equipment


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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 10:46 pm

Semiconductor Exposure Equipment

The performance of semiconductors improves on an almost daily basis. The mass production of semiconductor chips with 65 nm (1 nm is one-billionth of a meter) circuit widths is now getting underway. Canon continues to look toward the future as it develops state-of-the-art semiconductor exposure equipment designed to meet the demands of this cutting-edge industry.

Semiconductor Exposure Equipment


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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 10:46 pm

Nanomaterials and Nanostructure


When we make things in the ordinary-sized world, we use ordinary substances as our raw materials without paying much attention to their structures. In nanomanufacturing, however, not only chemical composition, but also physical structure, is of vital significance to the raw materials used. In other words, both substance and structure come into play.

When nanotechnology was born in the latter half of the twentieth century, the development of nanomaterials and nanostructures was largely a matter of chance. Substances created by chance and existing substances whose properties were not widely known were re-examined from the perspective of their properties at the nano level, and discovered to be materials that could be exploited in nanotechnology.

In the 21st century, however, a succession of new nanomaterials and nanostructures are being created through using special physical or chemical methods to change the structure of substances to bring out special properties, and intentionally manipulate molecules and atoms.

This News from : http://www.canon.com

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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 10:40 pm

Nanomaterials and Nanostructure


When we make things in the ordinary-sized world, we use ordinary substances as our raw materials without paying much attention to their structures. In nanomanufacturing, however, not only chemical composition, but also physical structure, is of vital significance to the raw materials used. In other words, both substance and structure come into play.

When nanotechnology was born in the latter half of the twentieth century, the development of nanomaterials and nanostructures was largely a matter of chance. Substances created by chance and existing substances whose properties were not widely known were re-examined from the perspective of their properties at the nano level, and discovered to be materials that could be exploited in nanotechnology.

In the 21st century, however, a succession of new nanomaterials and nanostructures are being created through using special physical or chemical methods to change the structure of substances to bring out special properties, and intentionally manipulate molecules and atoms.

This News from : http://www.canon.com

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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 10:40 pm

Thursday, 20 March 2008

Camcorder Brings Zen to the Shoot


Published: March 20, 2008

Well, this is a little embarrassing. One of the most significant electronics products of the year slipped into the market, became a mega-hit, changed its industry — and I haven’t reviewed it yet.

Lately, my guilt has deepened every time someone whips this thing out to show off. “Look what my first grader did with it all by herself,” one guy told me. “We’re using them in schools to teach narrative structure,” said a teacher at a conference. “I bought two of ’em: one for my 80-year-old grandmother,” said a neighbor, “and one for my 5-year-old.”

O.K., wait — what?

It’s the Flip: a tiny, stripped-down video recorder the size of a digital camera (but you hold it vertically). And in the year since its invention, it has taken 13 percent of the camcorder market, according to its maker, Pure Digital. The latest model, called the Flip Ultra, had its debut six months ago with slightly improved video quality, greater capacity, a tripod mount and better looks (available in white, black, orange, pink and green). It’s been the best-selling camcorder on Amazon.com since the day of its debut.

Read more.....

This news from : http://www.nytimes.com

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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 3:43 am

Camcorder Brings Zen to the Shoot


Published: March 20, 2008

Well, this is a little embarrassing. One of the most significant electronics products of the year slipped into the market, became a mega-hit, changed its industry — and I haven’t reviewed it yet.

Lately, my guilt has deepened every time someone whips this thing out to show off. “Look what my first grader did with it all by herself,” one guy told me. “We’re using them in schools to teach narrative structure,” said a teacher at a conference. “I bought two of ’em: one for my 80-year-old grandmother,” said a neighbor, “and one for my 5-year-old.”

O.K., wait — what?

It’s the Flip: a tiny, stripped-down video recorder the size of a digital camera (but you hold it vertically). And in the year since its invention, it has taken 13 percent of the camcorder market, according to its maker, Pure Digital. The latest model, called the Flip Ultra, had its debut six months ago with slightly improved video quality, greater capacity, a tripod mount and better looks (available in white, black, orange, pink and green). It’s been the best-selling camcorder on Amazon.com since the day of its debut.

Read more.....

This news from : http://www.nytimes.com

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Posted by: aroeltsm aroeltsm.blogspot.com, Updated at: 3:43 am

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