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
53
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 can cause no damages at all.
B、It can cause damages to the computer systems.
C、It can copy your files in computers.
D、It can format your hard drive.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2808618.html
相关试题推荐
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
[originaltext]Acommunitytheatreisanimportantpartofalmosteverycity
[originaltext]Acommunitytheatreisanimportantpartofalmosteverycity
[originaltext]ThereisagrowingrealizationintheUnitedStatesthatexce
[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
PlanB:SkipCollegeWhat’sthekeytosuccessinth
[originaltext]Thetwenty-thirdOlympicGameswereheldinLosAngelesand,
甲企业与乙企业签订货物购销合同,丙企业为合同担保人,丁先生为中间人,戊企业为见证
某项目财务现金流量见下表,则该项目的静态投资回收期为:A.5.4年 B.
侵害他人财产的,财产损失按照( )的市场价格或者其他方式计算。A.提出请求时
个体从事有目的的活动,在环境中遇到障碍或干扰,使其需要和动机不能获得满足时的紧张
患儿男,11岁,肝大、肢体震颤、步态不稳6个月,口齿不清,动作僵硬。肝肋下4cm
2017年9月,某中小企业板上市公司拟公开发行股票再融资,以下构成障碍的是(
国际融资担保存在多种不同的形式,如银行保函、备用信用证、浮动担保。依国际惯例,关
钢结构焊缝检验方案需经()批准。A.项目负责人 B.项目技术负责人 C
最新回复
(
0
)