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
2024-02-09
30
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
细节题。文章在最后提到恶性病毒能够破坏电脑系统。
转载请注明原文地址:https://tihaiku.com/zcyy/3434321.html
相关试题推荐
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
[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:Gosh,haveyouseenthis,Richard?M:Seewhat?W:Inthepape
[originaltext]M:Whatwouldbelikeworkingwiththoseyoungstars?W:Itwasa
随机试题
[A]affection[B]aware[C]befriend[D]blindly[E]directly[F]drives[G
Ifyoucountfrom1to100,howmany"8"swillyoupassontheway?20如果从1数到100,能
[originaltext]W:Youdon’tseemtobeabletositstilltoday.What’sgoingon?
同型半胱氨酸尿症主要是由于患者体内缺乏下列哪种酶所致A.尿黑酸氧化酶 B.胱硫
众多知识产权公约所确认的首要原则是( )。A.国民待遇原则 B.最低保护标准
患者,女,35岁,1小时前由汽车上摔下,枕部着地,急诊室称患者能自发睁眼,能对疼
实施清洁生产的基本途径包括()。A:原材料有效使用和替代 B:改革工艺和设备
市净率的计算公式为()。 A.每股市价X每股净资产(倍)B.每股市价/每股
商业银行可随时扣划保证金账户资金。
苦杏仁烊制的作用有A.除去非药用部位 B.便于有效成分煎出 C.杀酶保苷
最新回复
(
0
)