首页
登录
职称英语
[originaltext] The computer virus is an outcome of the computer fast growth
[originaltext] The computer virus is an outcome of the computer fast growth
游客
2023-07-10
62
管理
问题
The computer virus is an outcome of the computer fast growth in the 1980s.(22)The cause of the term "computer virus" is the likeness between the biological virus and the evil program infected with computer.
The origin of this term came from an American science fiction written by Thomas Ryan, published in 1977. Human viruses invade a living cell and turn it into a factory for producing viruses. However, computer virus are small programs.(23)They expand by attaching a copy of themselves to another program.
Once attached to the host Program, the viruses then look for other programs to "infect" . In this way, the virus can spread quickly throughout a hard disk or an entire organization when it infects a LAN or a multi-user system. The timing of the attack can be linked to a number of situations, including a certain time or date, the presence of a particular file, the security level of the user, and the number of times a file is used. Likewise, the mode of attack varies.(24)So-called benign viruses might simply display a message, like the one that infected IBM’s main computer system last Christmas with a season’s greeting.(25)Bad viruses are designed to damage the system. The attack is to wipe out data, to delete flies, or to format the hard disk.
选项
A、It is a virus that causes great damage.
B、It is a virus that infects the IBM’s computer system.
C、It is a virus that carries a Christmas greeting.
D、It is a virus that causes no harm to the computer systems.
答案
D
解析
转载请注明原文地址:http://tihaiku.com/zcyy/2824180.html
相关试题推荐
[originaltext]Peoplefromallculturesandethnicitiescanbefoundinever
[originaltext]Peoplefromallculturesandethnicitiescanbefoundinever
[originaltext]Peoplefromallculturesandethnicitiescanbefoundinever
[originaltext]Smokingisthemostimportantcauseofdiseaseanddeathint
[originaltext]W:Hello,Peter.Igreatlyregret-thatIcouldn’tgotoyourpar
[originaltext]W:Hello,Peter.Igreatlyregret-thatIcouldn’tgotoyourpar
[originaltext]W:Hello,Peter.Igreatlyregret-thatIcouldn’tgotoyourpar
[originaltext]W:Hello,Peter.Igreatlyregret-thatIcouldn’tgotoyourpar
[originaltext]Anelderlycarpenterwasreadytoretire.Hetoldhisemploye
[originaltext]Anelderlycarpenterwasreadytoretire.Hetoldhisemploye
随机试题
CampusCrimeWeoftenthinkofagricultureaspl
[originaltext]TodayI’mgoingtointroducesomeeffectiveskillsfortaking
[originaltext]W:Hello.What’sallthisthen,Harry?M:What’sallwhat?I’mma
1.题目:《圆的标准方程》 2.内容: 3.基本要求 (1)试讲约10
负外部效应
A.1800VA B.600VA C.600W D.1800W
维持和调节腹膜透析渗透压的主要物质的是()A:果糖 B:维生素 C:脂肪乳
毛蚴孵化法可用于诊断A.丝虫病B.黑热病C.血吸虫病D.锥虫病E.疟疾
某股份公司因破产进行清算,公司财产在支付完破产费用后,其偿付的优先顺序依次是()
移动通信设备网络测试内容有()。A.电压驻波比测试 B.网络功能和性能检验
最新回复
(
0
)