مسابقة اختيار مشرف مترجم للمدونة GeekArab

Computer Security
1. What is a computer virus?

Computer virus is a program designed to spread itself by first infecting executable files or the system areas of hard and floppy disks and then making copies of itself. Viruses usually operate without the knowledge or desire of the computer user.

2. What kind of files can spread viruses?

Viruses have the potential to infect any type of executable code, not just the files that are commonly called 'program files'. For example, some viruses infect executable code in the boot sector of floppy disks or in system areas of hard drives. Another type of virus, known as a 'macro'
virus, can infect word processing and spreadsheet documents that use macros. And it's possible for HTML documents containing JavaScript or other types of executable code to spread viruses or other malicious code.

Since virus code must be executed to have any effect, files that the computer treats as pure data are safe. This includes graphics and sound files such as .gif, .jpg, .mp3, .wav, etc., as well as plain text in .txt files. For example, just viewing picture files won't infect your computer with a virus. The virus code has to be in a form, such as an .exe program file or a Word .doc file, that the computer will actually try to execute.

3. How do viruses spread?

When you execute program code that's infected by a virus, the virus code will also run and try to infect other programs, either on the same computer or on other computers connected to it over a network. And the newly infected programs will try to infect yet more programs.

When you share a copy of an infected file with other computer users, running the file may also infect their computers; and files from those computers may spread the infection to yet more computers.

If your computer is infected with a boot sector virus, the virus tries to write copies of itself to the system areas of floppy disks and hard disks.
Then the infected floppy disks may infect other computers that boot from them, and the virus copy on the hard disk will try to infect still more floppies.
Some viruses, known as 'multipartite' viruses, can spread both by infecting files and by infecting the boot areas of floppy disks

rame كتب:

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rame كتب:

مشكورة على الرد بس انا ما قتنعت وبوافقك ان الترجمة الي انا قدمتها ومعظم الترجمات التي قدمت كانت قد نقصت مثل ال التعريف وترتيب الجمل وكان في كلمات منفردة وعلى كل حال انتم اصحاب القرار ونرجو من اللة عز وجل ان يحفظكم ويزيد من معرفتكم :fghfhghh: