Viruses are programs, which

replicate by infecting other ____________________ .

Worms can reproduce rapidly,

causing a network to __________ .

Some forms of information exchange

– e-mail, browsing web pages, downloading programs, chat and newsgroups – offer

a convenient channel for viruses to ________ .

Anti-virus programs include virus shields

and virus _________. 

An operating system must be

created in such a way as to allow the effective ___________ of new system

functions.

OSs have direct control and access to computer hardware and _________ locations.

Computer software possesses a _________ nature.

The operator loads as many programs and relative data files as the configuration will _________.

At the end of the processing of

the first program, control is given to the next _________ for processing.

Experts

distinguish between system software, programming software and