Showing posts with label computer. Show all posts
Showing posts with label computer. Show all posts

Monday, December 14, 2009

Next Year, 3.5 Inch Hard Disk Predicted Rare


The supply of hard disk drive (HDD) 3.5 inch for desktop and server began to shrink. Apparently the hard drive manufacturer surprised by strong demand abruptly to 3.5 hard drive "it.

According to Digitimes, the Taiwanese suppliers had predicted that there will be increasing demand to drive 2.5 "used in notebooks. Due to rapidly growing demand in notebooks this year, Western Digital (WD), Seagate, Hitachi, Toshiba and Samsung Electronics also increased production HDD 2.5 "him for notebooks.

But none of these producers who estimates that the desktop market will also rise rapidly. WD and Seagate is currently the two main suppliers of HDD 3.5 ". Together, they control more than 80 percent market share. And because both are busy focusing on the notebook, they do not increase production of its hard drive for desktop.

Analysts now predict that there will be scarcity of desktop hard disk drives in mid-2010. Of course, this deficiency will cause prices to rise.

Sunday, December 13, 2009

New rules of Facebook


Facebook finally inaugurated their new rules about the privacy issues of control have been many protests over the last few months.

Before formalizing these new rules last week, Mark Zuckerberg, founder of Facebook to send an open letter to all 350 million users. When he promises that there will be changes at Facebook.

In essence, the new choices available to allows users to customize any status updates or anything they post and upload. For example the content can be seen and others.

"Facebook did the transformation of the world's ability to control information online, by encouraging more than 350 million people to personalize who can see any content that they put anything," said Elliot Scharge, Vice President of Communications, Public Policy and Marketing Facebook to information The official, December 10, 2009.

Scharge mention, it designed Facebook so people can control what information you want to share with whom. "That's the reason why we attract the attention of our service user groups from around the world," said Scharge. "The announcement that we do today aims to meet the needs of users," he said

The most significant change made Facebook privacy options which are now available for all users every time they update the status or upload photos. There are now options that allow users to change the content is visible to just friends, friends of friends, all people, or customize their own.

Another new feature provided is the ability to make a list of friends and friends grouped based on what users want to share with them.

This option allows users to share photographs with family only, or make an opinion can be read by everyone. Finally, Facebook is also eliminated the regional network, well-worn features to a site with 350 million users.

Friday, December 11, 2009

top 10 famous hacker


The expertise of a hacker is often considered 'troublesome' number of victims. Yet not all be branded as negative hackers, many of them are using their expertise for the purposes of viewing or improve weaknesses in the computer software.

But the effect, caused by a number of hackers who used his skills for evil purposes is often a hacker got a negative view of society.

The journey to become a hacker himself traveled through a long journey. To become a famous hacker, often have to deal with the prison. Just look at the way 10 the following world-renowned hackers as reported by the Telegraph, Sunday (29/11).

1. Kevin Mitnick
Born August 6, 1963 this is one of the computer hacker most controversial in the late 20th century. United States Court even referred to him as a criminal fugitive most wanted computer in America. Kevin's been known to break into computer networks of major telecommunications companies such as Alcatel, Fujitsu and Motorola.

The FBI arrested Kevin Mitnick in January 1995 in her apartment in the city of Raleigh, North Carolina on charges of assault against the government. Currently, he job as a security consultant computer network system.

2. Kevin Poulson
Long before he became a senior editor at Wired News, Men's full name is Kevin Lee Poulsen was known as an excellent hacker. Born in Pasadena, United States, 1965 was never broken into the fixed line network owned by Los Angeles radio station KIIS-FM, so he often won the radio quizzes. Even over the phone via a radio quiz show he can win a major prize, a Porsche.

3. Adrian Lamo
Adrian Lamo's name is often dubbed as 'the homeless hacker' the article he often did its actions in coffee shops, libraries or internet cafe. Action the most attention was when he broke into the company's network of media, the New York Times and Microsoft, MCI WorldCom, Ameritech, Cingular. Not only that, he also managed to infiltrate the system's AOL Time Warner, Bank of America, Citigroup, McDonald's and Sun Microsystems. Now he is living as a journalist.

4. Stephen Wozniak
'Woz' as he was usually called. We have perhaps better known as a founder of Apple. But as a student, Wozniak has become a fairly competent hacker. 59-year-old man was known to have broken into the phone network that enables long distance calls without paying anything and without a time limit. The instrument was made during a student is known by the name 'blue boxes'

5. Loyd Blankenship
The man nicknamed the mentor was once a prominent member of a hacker group in 1980 Legion Of Doom. Blakenship is the author of The Conscience of a Hacker (Hacker Manifesto). The book, written after he was captured and published in the underground hacker ezine Phrack.

6. Michael Calce
From an early age Calce was known as a Hacker. Action to break the commercial sites of the world did when he was 15 years old. Men who use the name in any action MafiaBoy, is arrested when the break in 2000 ruffled eBay, Amazon and Yahoo.

7. Robert Tappan Morris
The name Morris is known as an internet virus maker in 1988, otherwise known as the 'Morris Worm' is known to damage approximately 6000 computers. Due his act he be sanctioned for social work for 4000 hours. Now he works as an educator at the Massachusetts Institute of Technology.

8. The Masters Of Deception
The Masters Of Deception (MoD) is a group of hackers based in New York. These groups often disrupt the phone network owned Telecommunications Company like AT & T. Some members of this group were arrested in 1992 and thrown into prison.

9. David L. Smith
Smith is known as the inventor of Mellisa worm, which was first discovered on March 26, 1999. Mellisa is often also known as "Mailissa", "Simpsons", "Kwyjibo", or "Kwejeebo". The virus is distributed via email. Smith himself eventually dragged to jail because the virus had caused approximately $ 80 million

10. Sven Jaschan
Jaschan to carve his name as a villain in the virtual world in 2004 when a malicious program Netsky and Sasser worms. Currently he works in a network security company.

Tuesday, December 8, 2009

computer hierarchy

Old method for comparing various computer classes are based on processing power. Analysts typically divide the computer into six categories: supercomputers, mainframes, midrange computers (mini computers and servers), workstations, notebooks, and PCs and various equipment.


Supercomputer

 The term does not refer to the supercomputer particular technology, but on the fastest computing machines are available in a period. Supercomputers usually handle the job very complicated for a series of very large data. Rather than just for processing and business applications, supercomputers typically run military and scientific applications, although its use for commercial applications, such as data mining, has increased. General supercomputer operates four to ten times faster than the next fastest computer classes.


Mainframe Computers

Although mainframe computers more and more regarded as another type of server, based on the sophistication scale performance and reliability, the mainframe remains a distinct class of system hardware and software features. Mainframe still popular in many large companies to komputansi broad applications and are accessed by thousands of users. Examples of mainframe applications include airfare reservation systems, payroll companies, and the calculation and reporting of student values.


Midrange Computers

Minicomputer also called, are relatively inexpensive, small, and compact, which perform the same function with mainframe computers, but in a more limited scope. Even the line between mini-computers to mainframes becomes less clear in terms of cost and performance. Minicomputer usually supports computer networks, allowing its users to share files, software, peripherals, and various other network resources. Minicomputer can provide flexibility for companies who do not want to spend money on IT in the form of mainframes that are less measurable.

Midrange Computer smaller is called the server. Servers are typically used to support the network, allowing users to share files, Software and other network equipment. Companies that have a great need for e-commerce website and have a very large often run the web and various e-commerce applications through several servers.


Workstation

The vendor computer workstations initially developed to provide a high level of performance required by the technicians. Thus, a workstation running the application of scientific, technical, financial and quite complicated. Workstations are usually based on RISC architecture (reduced instruction set computing) and provides high-speed calculations and high resolution graphics display. Computer is getting wide acceptance in the scientific community and recently in the business community.


PC

Pc became the dominant method to access workgroup applications. This computer is a system of ordinary microcomputers and general and that has become a standard tool for businesses, and more and more also for home. Computer is usually designed modular, with separate but connected monitor, keyboard and CPU.


Notebook

Microcomputers, notebooks are small, portable, and lightweight. Computer is designed for maximum comfort and convenience to carry, allowing access to processing power and data outside the office environment. It costs more than desktop for the same functionality.

panda antivirus for netbooks


Netbook / mini laptop is mostly using the atom processor lately very popular in many circles due to smaller and lighter than ordinary laptops and a cheaper price.
Performance of the Atom itself is more limited compared to other processors. Therefore, regular antivirus would be more burdensome than the performance of your netbook. Panda provides a solution to remove Panda Antivirus for Netbooks, which are created using the latest ultraportable technology very mild and does not burden the netbook performance. Antivirus uses TruPrevent technology and Collective Intelligence. Compatible with Windows 7.

Sunday, December 6, 2009

windows file systems

Windows file systems
Before formatting a volume or partition, consider the file system with which to format it. Windows 2000 and Windows XP support the NTFS file system, File Allocation Table (FAT), and FAT32. NTFS is the recommended file system for Windows 2000 and Windows XP because it supports several features that the other file systems do not, such as file and folder permissions, encryption, large volume support, and sparse file management. However, you must format the volume or partition as FAT if you plan to access files on that volume or partition from other operating systems, including MS-DOS, Windows 95, Windows 98, Windows Millennium Edition, and Windows NT 4.0.
Choose NTFS only if you are running Windows 2000 or Windows XP and you want to take advantage of NTFS features.
The following features are unique to NTFS:
  • Compression
  • Disk quotas
  • Encryption
  • Mount points
  • Remote storage
In addition, NTFS is required on all dynamic disks and GUID partition table (GPT) disks.

mplayer


mplayer is a movie player for Linux (runs on many other platforms and CPU architectures, see the documentation). It plays most MPEG/VOB, AVI, ASF/WMA/WMV, RM, QT/MOV/MP4, Ogg/OGM, MKV, VIVO, FLI, NuppelVideo, yuv4mpeg, FILM and RoQ files, supported by many native and binary codecs. You can watch VCD, SVCD, DVD, 3ivx, DivX 3/4/5, WMV and even H.264 movies, too.

MPlayer supports a wide range of video and audio output drivers. It works with X11, Xv, DGA, OpenGL, SVGAlib, fbdev, AAlib, libcaca, DirectFB, Quartz, Mac OS X CoreVideo, but you can also use GGI, SDL (and all their drivers), VESA (on every VESA-compatible card, even without X11), some low-level card-specific drivers (for Matrox, 3dfx and ATI) and some hardware MPEG decoder boards, such as the Siemens DVB, Hauppauge PVR (IVTV), DXR2 and DXR3/Hollywood+. Most of them support software or hardware scaling, so you can enjoy movies in fullscreen mode.

MPlayer has an onscreen display (OSD) for status information, nice big antialiased shaded subtitles and visual feedback for keyboard controls. European/ISO8859-1,2 (Hungarian, English, Czech, etc), Cyrillic and Korean fonts are supported along with 12 subtitle formats (MicroDVD, SubRip, OGM, SubViewer, Sami, VPlayer, RT, SSA, AQTitle, JACOsub, PJS and our own: MPsub) and DVD subtitles (SPU streams, VOBsub and Closed Captions).

mencoder (MPlayer’s Movie Encoder) is a simple movie encoder, designed to encode MPlayer-playable movies (see above) to other MPlayer-playable formats (see below). It encodes to MPEG-4 (DivX/Xvid), one of the libavcodec codecs and PCM/MP3/VBRMP3 audio in 1, 2 or 3 passes. Furthermore it has stream copying abilities, a powerful filter system (crop, expand, flip, postprocess, rotate, scale, noise, RGB/YUV conversion) and more. gmplayer is MPlayer with a graphical user interface. It has the same options as MPlayer.

mail merge in office 2007

Use mail merge to create and print letters and other documents
Use mail merge to create and print letters and other documents
You use mail merge when you want to create a set of documents, such as a form letter that is sent to many customers or a sheet of address labels. Each letter or label has the same kind of information, yet the content is unique. For example, in letters to your customers, each letter can be personalized to address each customer by name. The unique information in each letter or label comes from entries in a data source.
The mail merge process entails the following overall steps:
  1. Set up the main document. The main document contains the text and graphics that are the same for each version of the merged document. For example, the return address or salutation in a form letter.
  2. Connect the document to a data source. A data source is a file that contains the information to be merged into a document. For example, the names and addresses of the recipients of a letter.
  3. Refine the list of recipients or items. Microsoft Office Word generates a copy of the main document for each item, or record, in your data file. If your data file is a mailing list, these items are probably recipients of your mailing. If you want to generate copies for only certain items in your data file, you can choose which items (records) to include.
  4. Add placeholders, called mail merge fields, to the document. When you perform the mail merge, the mail merge fields are filled with information from your data file.
  5. Preview and complete the merge. You can preview each copy of the document before you print the whole set.

Saturday, December 5, 2009

command line panda usb vaccine

These arguments apply to the main executable (USBVaccine.exe), not to the setup program.
USBVaccine [ +system|-system ] [ /resident [/hidetray] [/autovaccinate] ] [/experimentalntfs] [/agreelicense] [drive units]
[drive units]:        Vaccinate drive unit [ A|B|C…|Z ]
+system :        Computer vaccination
-system :        Remove computer vaccine
/resident:        Start program hidden and prompt for vaccinating every new drive
/autovaccinate:     Automatically vaccinates any new drive inserted when used with the /resident command
/hidetray:        Hides tray icon when used with the /resident command

/experimentalntfs:    Enables the vaccination of NTFS USB keys. This is an experimental feature, use at your own risk. It’s recommended to backup your USB key before vaccinating it. Please send your feedback about this feature to http://research.pandasecurity.com/archive/Panda-USB-and-AutoRun-Vaccine.aspx

/agreelicense:        Use this parameter when you agree to the end user license agreement but want to avoid the agreement dialog being presented to the user

panda usb vaccine

The free Panda USB Vaccine allows users to vaccinate their PCs in order to disable AutoRun completely so that no program from any USB/CD/DVD drive (regardless of whether they have been previously vaccinated or not) can auto-execute.
The free Panda USB Vaccine also can be used on individual USB drives to disable its AUTORUN.INF file in order to prevent malware infections from spreading automatically. When applied on a USB drive, the vaccine permanently blocks the AUTORUN.INF file, preventing it from being read, created, deleted or modified. Once applied it effectively disables Windows from automatically executing any malicious file that might be stored in that particular USB drive. The drive can otherwise be used normally and files (even malware) copied to/from it, but they will be prevented from opening automatically.
Please take into account that vaccinating a USB drive is a non reversible operation and under some very unlikely conditions some applications could stop working. In any case if you do not have an AUTORUN.INF file in your USB drive it’s completely safe to vaccinate it.
Vaccinating NTFS file system formatted USB keys is supported by this program version, but this is an experimental feature, use at your own risk. It’s recommended to backup your USB key before vaccinating it.

autorun.inf

The Microsoft Windows Operating System uses the AUTORUN.INF file from removable drives in order to know which actions to perform when a new external storage device, such as a USB drive or CD/DVD, is inserted into the PC. The AUTORUN.INF file is a configuration file that is normally located in the root directory of removable media and contains, among other things, a reference to the icon that will be shown associated to the removable drive or volume, a description of its content and also the possibility to define a program which should be executed automatically when the unit is mounted.
The problem is that this feature is used by malware in order to spread to other computers infecting them as soon as a new USB drive is inserted into a new computer. What the malware does is copying a malicious executable in the drive and modifying the AUTORUN.INF file so that Windows opens the malicious file silently as soon as the drive is mounted. The most recent example of this is the Conficker worm which, in addition to spreading via the network, also spreads via USB drives.

Windows 7


Windows 7 (formerly codenamed Blackcomb and Vienna) is the latest version of Microsoft Windows, a series of operating systems produced by Microsoft for use on personal computers, including home and business desktops, laptops, netbooks, tablet PCs and media center PCs.

Windows 7 was released to manufacturing on July 22, 2009, with general retail availability set for October 22, 2009, less than three years after the release of its predecessor, Windows Vista. Windows 7’s server counterpart, Windows Server 2008 R2, is slated for release at about the same time.

Unlike its predecessor, which introduced a large number of new features, Windows 7 is intended to be a more focused, incremental upgrade to the Windows line, with the goal of being fully compatible with applications and hardware with which Windows Vista is already compatible.[5] Presentations given by Microsoft in 2008 focused on multi-touch support, a redesigned Windows Shell with a new taskbar, a home networking system called HomeGroup, and performance improvements. Some applications that have been included with prior releases of Microsoft Windows, including Windows Calendar, Windows Mail, Windows Movie Maker, and Windows Photo Gallery, will not be included in Windows 7; some will instead be offered separately as part of the free Windows Live Essentials suite.

Bing search engine

Bing (formerly Live Search, Windows Live Search, and MSN Search) is the current web search engine (advertised as a "decision engine") from Microsoft. Bing was unveiled by Microsoft CEO Steve Ballmer on May 28, 2009 at the All Things Digital conference in San Diego. It went fully online on June 3, 2009, with a preview version released on June 1, 2009. By August 2009, Bing had gained 9.3 percent of the United States Internet search market. However, by September, StatCounter stated that Bing's share of the US search market in September had fallen by almost one percentage point to 8.51%. Comscore claimed otherwise, stating that Bing's growth had held steady in September 2009, gaining 0.1 percent of the total United States Internet Search Market representing a market share of 9.4 percent.in October 2009 Bing's search share increased to 9.9%. Bing as a brand is also an attempt to eliminate the confusion caused by Microsoft’s “Windows Live” branding. Bing is now everything “search” related, whereas Windows Live encompasses the remnants of Microsoft’s consumer software products.
 
 

Office 2010

Microsoft Office 2010, codenamed Office 14, is the successor of Microsoft Office 2007, a productivity suite for Microsoft Windows and Mac OS X. Office 2010 includes extended file compatibility, user interface updates, a refined user experience and is planned to be released in June 2010. It will be available for Windows XP SP3 (32-bit), Windows Vista, and Windows 7. With the introduction of Office 2010, a 64-bit version of Office will be available for the first time, although only for Windows Vista and Windows 7 operating systems. Office 2010 is not supported on Windows XP Professional x64 Edition.

Office 2010 will mark the debut of free online versions of Word, Excel, PowerPoint, and OneNote, which will work in popular web browsers (Windows Internet Explorer, Mozilla Firefox, Google Chrome, and Apple Safari) but not in the Opera browser. Microsoft has confirmed that it will be released in the first half of 2010, and a public beta was made available in November 2009. A new edition of Office, Office Starter 2010, will replace the current low-end home productivity software, Microsoft Works.

Contents:
  • Microsoft Access 2010
  • Microsoft Excel 2010
  • Microsoft InfoPath Designer 2010
  • Microsoft InfoPath Filler 2010
  • Microsoft OneNote 2010
  • Microsoft Outlook 2010
  • Microsoft PowerPoint 2010
  • Microsoft Publisher 2010
  • Microsoft SharePoint Workspace 2010
  • Microsoft Word 2010
  • Microsoft Visio 2010 (not included in any Office 2010 Package)
  • Microsoft Project 2010 (not included in any Office 2010 Package)


https (hypertext transfer protocol secure)

Hypertext Transfer Protocol Secure (HTTPS) is a combination of the Hypertext Transfer Protocol with the SSL/TLS protocol to provide encryption and secure identification of the server. HTTPS connections are often used for payment transactions on the World Wide Web and for sensitive transactions in corporate information systems.
The main idea of HTTPS is to create a secure channel over an insecure network. This ensures reasonable protection from eavesdroppers and man-in-the-middle attacks, provided that adequate cipher suites are used and that the server certificate is verified and trusted.
The trust inherent in HTTPS is based on major certificate authorities which come pre-installed in browser software (this is equivalent to saying "I trust certificate authority (e.g. VeriSign/Microsoft/etc.) to tell me who I should trust"). Therefore an HTTPS connection to a website can be trusted if and only if all of the following are true:
  1. The user trusts the certificate authority to vouch only for legitimate websites without misleading names.
  2. The website provides a valid certificate (an invalid certificate shows a warning in most browsers), which means it was signed by a trusted authority.
  3. The certificate correctly identifies the website (e.g. visiting https://somesite and receiving a certificate for "Somesite Inc." and not "Shomesite Inc."
  4. Either the intervening hops on the internet are trustworthy, or the user trusts the protocol's encryption layer (TLS or SSL) is unbreakable by an eavesdropper.
As opposed to HTTP URLs which begin with "http://" and use port 80 by default, HTTPS URLs begin with "https://" and use port 443 by default.
HTTP is insecure and is subject to man-in-the-middle and eavesdropping attacks which can let attackers gain access to website accounts and sensitive information. HTTPS is designed to withstand such attacks and is secure (except for old deprecated versions of SSL).