A program that enters a computer usually without the knowledge of the operator. Some viruses are mild and only cause messages to appear on the screen, but others are destructive and can wipe out the computer's memory or cause more severe damage.
Note: Computer viruses spread from machine to machine on disks or, more commonly, over the Internet.
Note: The creation of computer viruses can be part of cyberwarfare.
|the offspring of a zebra and a donkey.|
|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|