首页
登录
职称英语
[originaltext] The computer virus is an outcome of the computer overgrowth i
[originaltext] The computer virus is an outcome of the computer overgrowth i
游客
2023-07-04
105
管理
问题
The computer virus is an outcome of the computer overgrowth in the 1980s. The cause of the term "computer virus" is the likeness between the biological virus and the evil program infected with computers. The origin of this term came from an American science fiction "The Adolescence of P-l" written by Thomas J. Ryan, published in 1977. Human viruses invade a living cell and turn it into a factory for manufacturing viruses. However, computer viruses are small programs. 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 multiuser 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. So called "benign" or the harmless viruses might simply display a message, like the one that infected IBM’s main computer system last Christmas with a season’s greeting. Malignant or the harmful viruses are designed to damage the system. The attack is to wipe out data, to delete files, or to format the hard disk.
Questions 22 to 25 are based on the passage you have just heard.
22. How did the name of "computer virus" come into being?
23. What is the way that the computer viruses infect the computer system?
24. What is a "benign" virus?
25. What can a "malignant" virus do to your computer?
选项
A、It is a virus that causes great damage.
B、It is a virus that once infected 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:https://tihaiku.com/zcyy/2808617.html
相关试题推荐
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
[originaltext]Acommunitytheatreisanimportantpartofalmosteverycity
[originaltext]W:Gosh,haveyouseenthis,Richard?M:Seewhat?W:Inthepape
[originaltext]W:Gosh,haveyouseenthis,Richard?M:Seewhat?W:Inthepape
[originaltext]W:Gosh,haveyouseenthis,Richard?M:Seewhat?W:Inthepape
[originaltext]W:CanIhelpyou?M:Yes,I’dliketoreadsomearticlesthatar
[originaltext]W:CanIhelpyou?M:Yes,I’dliketoreadsomearticlesthatar
[originaltext]M:Whatwouldbelikeworkingwiththoseyoungstars?W:Itwasa
[originaltext]M:Whatwouldbelikeworkingwiththoseyoungstars?W:Itwasa
随机试题
A.interactionB.experiencedC.reflectD.responseE.undertakenF.affectG.
Thefirsttennisballs______(是由皮革里面塞满羊毛或是毛发制成的).weremadeofleatherstuffed
ManyfamiliesintheUnitedStateshavealargerincomenowthaneverbefore
电力系统中的横向故障包括哪些A.三相短路 B.两相短路 C.单相电路接地
下图所示框架结构弯矩图正确的是( )。
完工结算与竣工决算的主要区别有( )。A.范围 B.计算方法 C.成本内容
简述糖尿病的膳食指导原则。
公司公开发行新股,应当符合()。 ①最近三年财务会计文件无虚假记载,无其他重
下列哪个行业的空间集聚度最高?()A.生产者服务业 B.消费者服务业 C
下列固结灌浆施工分序的原则中,正确的是()。A.应按分序加密的原则进行
最新回复
(
0
)