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
专升本
TapeStore is a new kind of tape storage system which can store up to 6,000 computer tapes. No other tape storage system can hold
TapeStore is a new kind of tape storage system which can store up to 6,000 computer tapes. No other tape storage system can hold
admin
2017-03-20
25
问题
TapeStore is a new kind of tape storage system which can store up to 6,000 computer tapes. No other tape storage system can hold as many computer tapes as TapeStore. The tapes look exactly like video cassettes. Many hundreds of data files can be stored on each tape, up to a maximum of 500 million bytes (字节) of data. If you stored the same amount of information on paper, you would need nearly 4. 5 billion printed pages.
The machine is a tall black box with a mechanical arm. The machine is 2. 5 metres high and 3.0 metres wide. This is how it works. Each tape has a code printed on it. You feed the code number into TapeStore, which then looks for the code. As soon as TapeStore locates the code,the arm reaches in and pulls out the tape.
The system is very fast. It takes the mechanical arm about 10 seconds to find the tape it is looking for. The machine then searches the tape to extract(提取)the required file, and this takes less than a minute. A human technician would have to locate and remove the tape by hand, and could take at least an hour to find the right file on the tape.
Some of the world’s biggest companies, including banks, insurance companies, airlines, telephone companies, utilities and computer centres, have bought the system. They like it particularly because the system guarantees the security of their data.
TapeStore was originally developed in Canada and is now being
marketed
worldwide. In Europe alone,750 TapeStores have already been installed at a cost of 480,000 dollars each.
Which of the following statements about TapeStore is NOT true?
选项
A、It can store a large amount of information.
B、It is very cheap.
C、It is very fast.
D、It is secure.
答案
B
解析
是非判断题。由文章最后一句可知,TapeStore并不便宜,故选B项。
转载请注明原文地址:https://kaotiyun.com/show/dhXC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Arecentsurveyshowedthatinthelastfiveyearsthepercentageofwivesaged25to29whodidnotwantchildrenhadalmostdo
Weweresurprisedat______theexam.
WhenIcomeacrossagoodarticleinreadingnewspapers,Ioftenwanttocutandkeepit.ButjustasIamabouttodosoIfind
ShoppinghabitsintheUnitedStateshavechangedgreatlyinthelastquarterofthe20thcentury.【C1】______inthe1900smostAm
FirstGreatWesternprovidesaconvenientandaccurateticketsellingservice.Westartalegalcontractwithuswhenyoupurcha
Moreandmorestudentswanttostudyin"hot"majors.【C1】______aresult,manystudentswantto【C2】______theirinterestsandstu
Thehousemasterwasstrict.Herequestedthatwe______televisiononweeknights.
IfyoulistentoAmericanmusic,watchAmericantelevisionormagazines,youwillprobablyagreethatthemostpopularsubjecto
Procrastination(犹豫不决)isadiseaseofthemind.Ascientificstudyinrecentyearshasshownthatitisacloserelativeofsadn
I’llcometoyourofficeassoonasI______thepaper.
随机试题
降低麻疹发病率的关键措施是
肛裂三联征是指________,________,________。
男性,60岁,冠心病患者,采购完日用品后上4层楼时,出现心悸、气短,可判断为
有一类极限数值为绝对极限,书写≥0.2和书写≥0.20或者≥0.200具有同样极限上的意义,对此类界限数值,用判定值或者计算值判定是否符合要求时,需要用修约比较法。()
项目后评价对项目投入运营后的预测内容包括()等。
气割金属时,金属在切割氧流中的燃烧应是()。
按照《火灾分类》(GB/T4968—2008)的规定,火灾分为A、B、C、D、E、F六类。下列选项属于B类火灾的是()。
明确提出到2010年我国同龄人口的高等教育入学率要从百分之九提高到百分之十五左右的教育体制改革是()
VB应用程序不能把一个二维表格中的数据存入文件()。
若有定义语句“intx=10,y=20z=20;”,则表达式x>z&&y=z的值为______。
最新回复
(
0
)