首页
登录
职称英语
The computer virus is an outcome of the computer overgrowth inthe 1980s. T
The computer virus is an outcome of the computer overgrowth inthe 1980s. T
游客
2023-09-09
19
管理
问题
The computer virus is an outcome of the computer overgrowth in
the 1980s. The cause of this term is the likeness between the biological
virus and the evil program infected with computers. The origin of this
term came an American science fiction "The Adolescence of P-1" written 【S1】______
by Thomas J. Ryan published in 1977. Human viruses invade a living
cell and turn them into a factory for manufacturing viruses. 【S2】______
Therefore, computer viruses are small programs. They replicate by attaching 【S3】______
a copy of themselves to another program.
Once attached by host program, the viruses then look for other programs 【S4】______
to" infect". In this way, the virus can spread quickly throughout a
hard disk or an entire organization. At some points, the situation will be 【S5】______
totally determined by how the virus was programmed. The timing of the
attack can be linked to a number of situations, included a certain time 【S6】______
or date, the presence of a particular file, the security privilege level of
the user and the number of times a file is used. 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. Malignant
viruses are designed to damage the system. The attack is to wiping 【S7】______
out data, to delete files or to format the hard disk.
There are two main types of viruses: shell and intrusive system.
Shell viruses wrap themselves around a host program and don’t modify
the original program. Shell programs are easy to write, that is why about 【S8】______
half of viruses are of this type. Intrusive viruses invade an existing program
and actual insert a portion of themselves into the host program. 【S9】______
Intrusive viruses are hard to write and very difficult to remove with 【S10】______
damaging the host file. [br] 【S1】
选项
答案
came ∧ an→from
解析
缺漏错误。“来自于,来源于”应当用come from,此处漏掉了介词from。
转载请注明原文地址:https://tihaiku.com/zcyy/2998821.html
相关试题推荐
[originaltext]Althoughthefirstcomputerswereproducedforuseingovernm
[originaltext]Althoughthefirstcomputerswereproducedforuseingovernm
[originaltext]Althoughthefirstcomputerswereproducedforuseingovernm
[audioFiles]audio_eusm_0218(20106)[/audioFiles]A、Hiscomputerdoesn’tworkwell
Computershavebeentaughttoplaynotonlycheckers,butalsochampionship
Computershavebeentaughttoplaynotonlycheckers,butalsochampionship
Navigationcomputers,nowsoldbymostcar-makers,cost$2,000andup.Nos
Navigationcomputers,nowsoldbymostcar-makers,cost$2,000andup.Nos
Mostpeople’sjobsarelikelytobeeffectedbycomputers【S1】______
Mostpeople’sjobsarelikelytobeeffectedbycomputers【S1】______
随机试题
(1)Travelingthroughthecountryacoupleofweeksagoonbusiness,Iwasli
Manychildrenfirstlearnthevalueofmoneybyreceivinganallowance.The
Thefirstaid(急救)youlearnfromacourseisnotquitelikereality.Mosto
变电站内安装避雷器的原则()。A.一般变电站对于雷电波的侵入波保护设计主要是采用
A.干扰肾小管分泌 B.干扰肾小管重吸收 C.影响体内电解质平衡 D.酶促
家属咨询母乳喂养的优点,下列哪项不是母乳喂养的解释A.促进婴儿心理发展 B.促
SF6新气体到货后1个月内,以每批1瓶进行抽样
开标应由什么人主持,邀请所有投标人参加? A.招标人B.招标人代表C.公证
下列关于“学会学习”的说法中正确的是()。 (A)是小学生的最基本学习任务
眩晕日久不愈,精神萎靡,两目干涩,视力减退,腰膝酸软,五心烦热。舌红少苔,脉细数
最新回复
(
0
)