Casio MPC-501 Manuel d'utilisateur télécharger pdf (Page 11)

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 Manuel d'utilisateur Page 11