首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
How did the name of "computer virus" come into being?
How did the name of "computer virus" come into being?
admin
2022-08-05
43
问题
How did the name of "computer virus" come into being?
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 I. 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 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. 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. There are several kinds of anti-virus software providing the services for prevent the virus from attacking your computer. So you should install the anti-virus software before your access to the Internet. It will be no use to install the software after you’ve got infected.
选项
A、It resembles the biological virus.
B、It works the same way as the human virus.
C、It influences the human as the biological viruses do.
D、It spreads to people who use the infected computers.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/HkNd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
"Family"isofcourseanelasticword.Andindifferentcountriesithasdifferentmeanings.ButwhenBritishpeoplesaythatth
Scientistsfindthathard-workingpeoplelivelongerthanaveragemenandwomen.Careerwomenare【C1】______thanhousewives.Evid
Whatisthebesttitleforthedialogue?
Howdidthespeakerandtheoldladybecomegoodfriends?
ThierryDanielHenry(bornon17August1977)isaFrenchfootballstrikercurrentlyplayingforSpanishLaLigaclubFCBarcelo
Manyteachersbelievethattheresponsibilitiesforlearningliewiththestudent.【C1】______alongreadingassignmentisgiven,
Whyarethemanandthewomandiscussingtheapartment?
StevelandMorrisisahouseholdnameinAmerica.AskStevelandMorrisandhe’lltellyouthatblindnessisnotnecessarilydisab
StevelandMorrisisahouseholdnameinAmerica.AskStevelandMorrisandhe’lltellyouthatblindnessisnotnecessarilydisab
StevelandMorrisisahouseholdnameinAmerica.AskStevelandMorrisandhe’lltellyouthatblindnessisnotnecessarilydisab
随机试题
会计制度设计的对象是指()
血涂片经瑞氏染色后细胞核不着色或着色浅,而胞质着色尚可,最可能的原因是
先天性心脏病最主要的病因是( )。
根据病情,病人目前最主要的护理诊断是
依据《环境影响评价技术导则非污染生态影响》,下列()自然资源开发1级项目提交的成果除完成基础图件外,要充分应用“3S”一体化、多媒体等高新信息技术手段进行生态影响评价,并提交相应成果。
ABC公司的管理会计师正在分析该公司的财务数据,销售利润率为15%,市盈率为20倍,每股收益为$2.5,应收账款天数为65天,财务杠杆率为3,速动比率为0.6。基于这些信息,就资产回报率和权益回报率,该管理会计师能得出以下哪个结果?
学生的态度与道德行为在很大程度上受到他们所归属的______的行为准则和风气影响。
企业未设置“预付账款”科目,发生预付货款业务时应借记()科目。
根据下列图表,回答106~110题:根据上图,下列关于我国农村用电发电情况的表述,错误的一项是()。
平畴交远风,_______。
最新回复
(
0
)