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
2024-02-11
21
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:https://tihaiku.com/zcyy/3440446.html
相关试题推荐
[originaltext]IfirstmetJoeGumpswhenwewereboth9yearsold,whichis
[originaltext]Peoplefromallculturesandethnicitiescanbefoundinever
[originaltext]Smokingisthemostimportantcauseofdiseaseanddeathint
[originaltext]Smokingisthemostimportantcauseofdiseaseanddeathint
[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
[originaltext]Anelderlycarpenterwasreadytoretire.Hetoldhisemploye
随机试题
[originaltext]M:HowlongcanIplayontheplayground?W:Well,itopensat9:
Careforchildrenandolderpeoplehasrecentlyhittheheadlines.Governmen
2______isthemasterpiecewrittenbyWaltWhitman.A、LeavesofGrassB、Evangeline
AstronomershavediscoveredwhatmaybefiveplanetsorbitingTauCeti,the
Hemusthavegonetothecinemalastnight,______?A、mustn’theB、hasn’theC、is
[originaltext]Notallmathskillsarelearnedintheclassroom.Someofthe
编辑在进行产品策划工作的过程中,需要处理好三组关系,分别为( )。A.用户需求
一名45岁男性患者,慢性肾功能衰竭于持续硬膜外麻醉下行异体肾移植术,人手术室BP
银行对客户进行财务分析的方法不包括( )。A.回归分析法 B.结构分析法
某日调节水电站运营期工程分析中,对坝下河道水生态影响分析应关注的有( )。A.水
最新回复
(
0
)