Senin, 31 Agustus 2009
Netbook
At their inception in late 2007 — as smaller notebooks optimized for low weight and low cost — netbooks omitted key features (i.e., the optical drive or ethernet port), featured smaller screens and keyboards, and offered reduced specification and computing power. Over the course of their evolution, netbooks have ranged in size from below 5 inches to over 13, and from 2 to 3 pounds (~1 kg). Often significantly less expensive than other laptops, by mid-2009, netbooks had been offered to users "free of charge", with an extended service contract purchase.[7]
In the short period since their appearance, netbooks have grown in size and features, now converging with new smaller, lighter notebooks.[1] By mid 2009, CNET noted "the specs are so similar that the average shopper would likely be confused as to why one is better than the other,"[1] noting "the only conclusion is that there really is no distinction between the devices."[1]
The word netbook is a portmanteau of the words Internet and notebook.
Minggu, 30 Agustus 2009
General Packet Radio Service
GPRS data transfer is typically charged per megabyte of traffic transferred, while data communication via traditional circuit switching is billed per minute of connection time, independent of whether the user actually is using the capacity or is in an idle state. GPRS is a best-effort packet switched service, as opposed to circuit switching, where a certain quality of service (QoS) is guaranteed during the connection for non-mobile users.
2G cellular systems combined with GPRS are often described as 2.5G, that is, a technology between the second (2G) and third (3G) generations of mobile telephony. It provides moderate speed data transfer, by using unused time division multiple access (TDMA) channels in, for example, the GSM system. Originally there was some thought to extend GPRS to cover other standards, but instead those networks are being converted to use the GSM standard, so that GSM is the only kind of network where GPRS is in use. GPRS is integrated into GSM Release 97 and newer releases. It was originally standardized by European Telecommunications Standards Institute (ETSI), but now by the 3rd Generation Partnership Project (3GPP).
GPRS was developed as a GSM response to the earlier CDPD and i-mode packet switched cellular technologies.
Sabtu, 29 Agustus 2009
MENGIRIM EMAIL DENGAN BAIK DAN BENAR
Jumat, 28 Agustus 2009
Memperbaiki WIN XP tampa Instal Ulang
Langsung aja yah,
Jika Windows XP Anda rusak (corrupted) dimana Anda tidak mempunyai sistem operasi lain untuk booting,
Anda dapat melakukan perbaikan instalasi (Repair Install) yang bekerja sebagaimana setting (pengaturan)
yang awal.
- Pastikan Anda mempunyai kunci (key) Windows XP yang valid.
- Keseluruhan proses akan memakan waktu kurang lebih 1/2 atau 1 jam, tergantung spek komputer Anda.
- Jika Anda dimintai password administrator, sebaiknya Anda memilih opsi perbaikan (repair) yang kedua,
bukan yang pertama.
- Masukkan CD Windows XP Anda dan lakukan booting dari CD tersebut.
- Ketika sudah muncul opsi perbaikan kedua R=Repair, tekan tombol R
Ini akan memulai perbaikan.
- Tekan tombol F8 untuk menyetujui proses selanjutnya "I Agree at the Licensing Agreement"
- Tekan tombol R saat direktori tempat Windows XP Anda terinstal. Biasanya C:\WINDOWS
Selanjutnya akan dilakukan pengecekan drive C: dan mulai menyalin file-file.
Dan secara otomatis restart jika diperlukan. Biarkan CD Anda dalam drivenya.
- Berikutnya Anda akan melihat sebuah gambar "progress bar" yang merupakan bagian dari perbaikan,
dia nampak seperti instalasi XP normal biasanya, meliputi "Collecting Information, Dynamic Update,
Preparing Installation, Installing Windows, Finalizing Installation".
- Ketika ditanya, klik tombol Next
- Ketika ditanya untuk memasukkan kunci, masukkan kunci (key) Windows XP Anda yang valid.
- Normalnya Anda menginginkan tetap berada dalam nama Domain atau Workgroup yang sama.
- Komputer akan restart.
- Kemudian Anda akan mempunyai layar yang sama sebagaimana pengaktifan sistem ketika instalasi normal.
- Register jika Anda menginginkannya (biasanya tidak diperlukan).
- Selesai
Sekarang Anda bisa log in dengan account Anda yang sudah ada.
__________________________________________________ __________________________________________________ ___
2. NTOSKRNL Rusak atau Hilang (Missing or Corrupt)
Jika Anda mendapati pesan error bahwa "NTOSKRNL not found" / NTOSKRNL tak ditemukan, lakukan:
- Masukkan CD Windows XP dan booting dari CD tersebut.
- Pada saat muncul opsi R=Repair yang pertama, tekan tombol R.
- Tekan angka sesuai dengan lokasi instalasi Windows yang ingin diperbaiki yang sesuai.
- Biasanya #1
- Pindahlah ke drive CD Drive Anda berada.
- Tulis: CD i386
- Tulis: expand ntkrnlmp.ex_ C:\Windows\System32\ntoskrnl.exe
- Jika Windows XP Anda terinstal di tempat lain, maka ubahlah sesuai dengan lokasinya.
- Keluarkan CD Anda dan ketikkan EXIT
__________________________________________________ __________________________________________________ ___
3. HAL.DLL Rusak atau Hilang (Missing or Corrupt)
Jika Anda mendapatkan error berkenaan dengan rusak atau hilangnya file hal.dll, ada kemungkinan
file BOOT.INI mengalami salah konfigurasi (misconfigured).
- Masukkan CD Windows XP dan booting dari CD tersebut.
- Pada saat muncul opsi R=Repair yang pertama, tekan tombol R.
- Tekan angka sesuai dengan lokasi instalasi Windows yang ingin diperbaiki yang sesuai.
- Biasanya #1
- Tulis: bootcfg /list
Menampilkan isi/masukan pada file BOOT.INI saat ini
- Tulis: bootcfg /rebuild
Memperbaiki konfigurasi dari file BOOT.INI
- Keluarkan CD Anda dan ketikkan EXIT
__________________________________________________ __________________________________________________ ___
4. Direktori \WINDOWS\SYSTEM32\CONFIG rusak atau hilang
Jika Anda mendapatkan error dengan tulisan:
"Windows could not start because the following files is missing or corrupt
\WINDOWS\SYSTEM32\CONFIG\SYSTEM or \WINDOWS\SYSTEM32\CONFIG\SOFTWARE"
- Masukkan CD Windows XP dan booting dari CD tersebut.
- Pada saat muncul opsi R=Repair yang pertama, tekan tombol R.
- Tekan angka sesuai dengan lokasi instalasi Windows yang ingin diperbaiki yang sesuai.
- Biasanya #1
- Masukkan password administrator jika diperlukan.
- Tulis: cd \windows\system32\config
- Berikutnya tergantung di bagian mana letak terjadinya kerusakan:
- Tulis: ren software software.rusak ATAU ren system system.rusak
- Berikutnya lagi juga tergantung di bagian mana letak terjadinya kerusakan:
- Tulis: copy \windows\repair\system
- Tulis: copy \windows\repair\software
- Keluarkan CD Anda dan ketikkan EXIT
__________________________________________________ __________________________________________________ ___
5. NTLDR atau NTDETECT.COM tak ditemukan (NTLDR or NTDETECT.COM Not Found)
Jika Anda mendapati error bahwa NTLDR tak ditemukan saat booting:
a. Untuk partisi tipe FAT
- Silakan Anda melakukan booting dari disket Win98 Anda dan salinlah file NTLDR atau NTDETECT.COM
dari direktori i386 ke drive induk/akar (root) C:\
b. Untuk partisi tipe NTFS
- Masukkan CD Windows XP dan booting dari CD tersebut.
- Pada saat muncul opsi R=Repair yang pertama, tekan tombol R.
- Tekan angka sesuai dengan lokasi instalasi Windows yang ingin diperbaiki yang sesuai.
- Biasanya #1
- Masukkan password administrator jika diperlukan.
- Masukkan perintah berikut, dimana X: adalah alamat drive dari CD ROM Anda (Sesuaikan!).
- Tulis: COPY X:\i386\NTLDR C\:
- Tulis: COPY X:\i386\NTDETECT.COM C:\
- Keluarkan CD Anda dan ketikkan EXIT
Islam Channel
The channel was the original effort of Mohammed Sajid, Shaheen Akhtar, Salauddin Ali, Ibrahim Rashid, Faisal Nazir and Asif Malik. Since its launch, the channel has expanded its range of programming, including programmes regarding current affairs, education, Islamic values, Islamic doctrine, as well as domestic, financial and community related topics. The channel is watched by 59 per cent of Britain’s 1.6 million Muslims[2] and by other viewers abroad: its target audience is mainly English-speaking Muslims
Kamis, 27 Agustus 2009
Internet in Indonesia
Indonesian internet service providers (ISPs) offer internet service on top of the PT Telkom's ADSL network. ADSL customers usually are obliged to pay two separates bills, one for the ADSL line charges to PT Telkom and internet service charges to the ISP.
Broadband internet services are mainly available in most big cities, including Greater Jakarta and Surabaya.
Another type of wireless broadband internet services in Indonesia, which are currently in the trial phase, are 3G cellular and 3.5G HSDPA services. Most of the major cellular telecommunication provider provides this high-speed mobile internet service. They include Indosat, Telkomsel, Excelcomindo (XL) and 3. Also, the usage of EV-DO has been applied into service by Indonesian CDMA cellular provider, which includes Mobile8, Esia and Telkom Flex
Rabu, 26 Agustus 2009
Goals and benefits of e-learning
- Improved performance: A 12-year meta-analysis of research by the U.S. Department of Education found that higher education students in online learning generally performed better than those in face-to-face courses.[5]
- Increased access: Instructors of the highest calibre can share their knowledge across borders, allowing students to attend courses across physical, political, and economic boundaries. Recognized experts have the opportunity of making information available internationally, to anyone interested at minimum costs. For example, the MIT OpenCourseWare program has made substantial portions of that university's curriculum and lectures available for free online.
Senin, 24 Agustus 2009
Email and www
E-mail
The concept of sending electronic text messages between parties in a way analogous to mailing letters or memos predates the creation of the Internet. Today it can be important to distinguish between internet and internal e-mail systems. Internet e-mail may travel and be stored unencrypted on many other networks and machines out of both the sender's and the recipient's control. During this time it is quite possible for the content to be read and even tampered with by third parties, if anyone considers it important enough. Purely internal or intranet mail systems, where the information never leaves the corporate or organization's network, are much more secure, although in any organization there will be IT and other personnel whose job may involve monitoring, and occasionally accessing, the e-mail of other employees not addressed to them. Pictures, documents and other files can be sent as e-mail attachments. E-mails can be cc-ed to multiple e-mail addresses.
Graphic representation of a minute fraction of the WWW, demonstrating hyperlinks
Many people use the terms Internet and World Wide Web (or just the Web) interchangeably, but, as discussed above, the two terms are not synonymous. The World Wide Web is a huge set of interlinked documents, images and other resources, linked by hyperlinks and URLs. These hyperlinks and URLs allow the web servers and other machines that store originals, and cached copies of, these resources to deliver them as required using HTTP (Hypertext Transfer Protocol). HTTP is only one of the communication protocols used on the Internet. Web services also use HTTP to allow software systems to communicate in order to share and exchange business logic and data.
Software products that can access the resources of the Web are correctly termed user agents. In normal use, web browsers, such as Internet Explorer, Firefox, Opera, Apple Safari, and Google Chrome, access web pages and allow users to navigate from one to another via hyperlinks. Web documents may contain almost any combination of computer data including graphics, sounds, text, video, multimedia and interactive content including games, office applications and scientific demonstrations. Through keyword-driven Internet research using search engines like Yahoo! and Google, millions of people worldwide have easy, instant access to a vast and diverse amount of online information. Compared to encyclopedias and traditional libraries, the World Wide Web has enabled a sudden and extreme decentralization of information and data.