A virus is a file that was programmed to harm your computer. It may be transferred to your Operating System (the environment which runs your computer) and can be hidden within program files, system files, or your account files. Viruses can severely damage your computer, so purchase a good antivirus program, such as Norton internet Security 2011 (for windows). If you run Macintosh, you already have virus protection.
no a virus cannot speed up the operating system even if it was sent from it
If you operating system is unbootable, then the safest option is to reformat and reinstall.
use linux operating system
A macro virus takes advantage of the relationship between the trust application and the operating system?
virus
Basically - No. A computer virus can possibly damage images you have downloaded to your computer, but not your camera. A virus does its business by running certain system commands in the operating system. The camera does not have the same type of operating system as a computer.
In simple terms: Linux is an operating system. A virus is a malicious application that infects and attempts to damage or altar system files in a computer/operating system. You can get a virus in Linux, yes, as with any operating system but no Linux itself is not a virus. Just make sure anything you use is from a trusted source.
Virus free is not true at all. However, virus writers have a harder time in a linux environment. and linux distros don't run as admin/root by default .
You can get a virus on any operating system through file sharing.
Install virus software
A Companion virus
Usually when there's virus in a laptop / pc, you will experience problem loading in to your Operating system (e.g. WindowsXP/Vista). You will also notice that whenever it reaches a stage where the system is suppose to load your operating system, virus will make it undergo 'restart' again and again.