Computer Viruses

Avoiding Computer Viruses

A computer virus is a program. It gets installed on your system without you being aware of it, and can do anything from displaying strange messages to destroying your data and other programs. A virus can enter your system via a floppy diskette or network. Taking the following precautions are normally sufficient to protect against having a virus invade your system.

Write protect the master copies of your programs and data files.

Never open data files or run programs of unknown origin.

Use a commercially available virus checker to check new programs, and periodically check your system for virus contamination.

Use the latest version of a commercially available virus checker to check your system.

An immediate virus check is recommended in the following cases.

Check your system each time you start up your computer.

Check any data file or program you received on a floppy diskette or other external media, over a network, from a BBS or the Internet, via e-mail, etc. before opening the file or running the program.

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Casio MPC-501 manual Computer Viruses Avoiding Computer Viruses