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
2015-08-14
45
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-\ 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 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 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://kaotiyun.com/show/m7jd777K
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
What’stheman’sfirstreactiontowhatthewomandescribes?
ForanincreasingnumberofstudentsatAmericanuniversities,Oldissuddenlyin.Thereasonisobvious:thegrayingofAmerica
ForanincreasingnumberofstudentsatAmericanuniversities,Oldissuddenlyin.Thereasonisobvious:thegrayingofAmerica
Manystudentsfindtheexperienceofattendinguniversitylecturestobeaconfusingandfrustratingexperience.Thelecturersp
Manystudentsfindtheexperienceofattendinguniversitylecturestobeaconfusingandfrustratingexperience.Thelecturersp
Manystudentsfindtheexperienceofattendinguniversitylecturestobeaconfusingandfrustratingexperience.Thelecturersp
Thepotentialofcomputersforincreasingthecontroloforganizationsorsocietyovertheirmembersandforinvadingtheprivac
Whatwillthemandotonight?
Whatwillthemandotonight?
随机试题
只要是一般纳税人,就可以领取使用增值税专用发票。 ( )
下列经济行为中,需按“转让无形资产”税目缴纳营业税的是( )。
下列各项中,不符合有关增值税纳税地点规定的是()。
我国古代戏曲中的杰作《西厢记》的作者是关汉卿。()
上海到南京共有43个车站,铁路局为此需要准备车票的种数是:
下列关于我国县级人民政府的表述中,正确的是()
下列情形中,收养关系有效的是()(2011年非法学基础课单选第37题)
(10)指可以不经著作权人许可,不需要支付报酬,使用其作品。
FTP使用(26)端口号传送数据。
Dailynewspaperhasaneditorialpage.Hereopinionisexpressedoneventsand【B1】______inthenews.Buteditorialjudgmentis
最新回复
(
0
)