Virus

Computer Virus:

A computer virus is program that may disturb the normal working of a computer system. Virus attaches itself to files stored on floppy disks, email attachments and hard disks. A file containing a virus is called infected file.

The virus cannot damage computer hardware. It may cause many damages to a computer system. A virus can:

• Damage data or software on the computer.
• It can delete some or all files on the computer system.
• It can destroy all data by formatting hard drive.
• It may display a political or false message every few times.