computer virus

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vi•rus

(ˈvaɪ rəs)

n., pl. -rus•es.
1. an ultramicroscopic (20 to 300 nm in diameter), metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA or DNA core, a protein coat, and, in more complex types, a surrounding envelope.
2. a disease caused by a virus.
3. a corrupting influence on morals or the intellect; poison.
4. a segment of self-replicating code planted illegally in a computer program, often to damage or shut down a system or network.
[1590–1600; < Latin vīrus slime, poison; akin to ooze2]
vi′rus•like`, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.computer virus - a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computercomputer virus - a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer; "a true virus cannot spread to another computer without human assistance"
malevolent program - a computer program designed to have undesirable or harmful effects
Translations
فيروس كمبيوتر
számítógépes vírus
computervirus
počítačový vírus
References in periodicals archive ?
Information security "guru" Mikko Hypponen, Chief Research Officer of F-Secure and best known in the industry as the man who led a team that tracked down the authors of the first PC virus, has revealed that the main sources of cyberattacks are criminals, hacktivists and governments.
Hypponen, who is best known in the industry as the man who led a team that tracked down the authors of the first PC virus, was the keynote speaker on the third day and spoke on the topic "The real world isn't like the online world".
It took until 1986 for these two threads had come together and the first PC virus 'Brain' was born.
has announced Hydra PC Virus Protected (ViP) USB encryption drives incorporating antivirus protection from McAfeeR Scan Engine technology.
CA (NYSE:CA), an IT management software company, announced on Wednesday (27 September) that its CA Internet Security Suite 2007 provides up to USD6,500 in protection to customers in the event they are affected by PC virus infections or a victim of identity theft.
As a blatant promotional gimmick, the first stealth PC virus represented the granddaddy of all the vile and insidious things to follow on the Net, including my personal favorite: spam.
SECURITY firms have found a PC virus that comes back from the dead.
This Pocket PC virus does not travel via e-mail, and also requires users to deliberately send it to other Pocket PC PDA users.
In 1986, two brothers, Amjad and Basit Farooq Alvi, wrote what is thought to be the first PC virus to infect floppy disks.