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
Although 【21】______ circuits made computers smaller, the processing units still consisted 【22】______ a number of circuits
Although 【21】______ circuits made computers smaller, the processing units still consisted 【22】______ a number of circuits
admin
2010-07-06
36
问题
Although 【21】______ circuits made computers smaller, the processing units still consisted 【22】______ a number of circuits on separate chips. In 1971, an engineer working for Intel realized that a 【23】______ of circuits commissioned for an electronic calculator could all be put 【24】______ one chip, and that the resulting device could be used 【25】______ a general-purpose "computer on a chip". The result was the Intel 4004 -- the world’s first microprocessor. Physically, it consisted of a silicon chip in a protective ceramic capsule, with a set of metal pins sticking 【26】______ that connected it to other components in whatever 【27】______ it controlled. It 【28】______ 2,300 transistors, 【29】______ 60,000 operations per second, and could be used for any device -- including computers and robots -- that required a "brain" for accepting 【30】______ and following a program of 【31】______ to produce an output. Within five years, many very powerful microprocessors had 【32】______ .The invention of microprocessors 【33】______ the stage for the arrival of the microcomputer, or personal computer (PC)-- an affordable machine for 【34】______ The first PCs, in kit form, appeared in the mid 1970s, and by the mid-1980s machines such as the Apple Macintosh and those based 【35】______ a PC first 【36】______ by IBM in 1981 were popular throughout the world. The success of these machines led to an explosion of software, in 【37】______ a range of spreadsheet, word-processing, graphic, educational, and games programs. Since the 1980s, a number of strong-intertwined themes have 【38】______ the computer revolution forward, including a continuing increase in the processing power and decrease in the size and cost of PCs; a switch of emphasis from 【39】______ to linked machines, as evidenced by the growth of local area networks and the Internet; and the spread of computer applications into virtually every 【40】______ of home and business life.
【27】
选项
A、device
B、appliance
C、apparatus
D、tool
答案
A
解析
四项都有“器具”含义,但侧重点不同。device指“具有某种用途的装置”;appliance指“有某种特定用途的用具”,如“家用电器”就是 electrical appliances;apparatus指“科学实验中用的精密仪器”,或“体操器械”;tool是最宽泛的“工具”,往往含有一种“较原始”的意味,且与人密切相关。根据上下文含义:“微处理器控制的装置”,A为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/hVDd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Fordecades,postersdepictingrabbitswithinflamed,reddenedeyessymbolizedcampaignsagainstthetestingofcosmeticsonani
Ialwayseatbreakfast,andsuggestthatyoudotoo.Weallneedfoodinthemorningtosupplyourselves【C1】________sourcesofg
Artwasherfavoritesubjectatschool,butshedidadegreeingeography.
Childrenwhogriptheirpenstooclosetothewritingpointarelikelytobeatadisadvantageinexaminations,【C1】________toth
Childrenwhogriptheirpenstooclosetothewritingpointarelikelytobeatadisadvantageinexaminations,【C1】________toth
Thebestestimateofhumanity’secologicalfootprintsuggeststhatitnowexceedstheEarth’sregenerativecapacitybyaround20
Ontheheelsofitsrecentdecisiontocriminalizeconsumerswhoripsongsfromalbumstheyhavepurchasedtotheircomputers(o
EFirstofall,we’dliketoknowsomethingaboutyou,soI’mgoingtoasksomequestionsaboutyourselves.EWhatdoyouusually
Amethodofparent-teachercommunicationNOTmentionedorreferredtobytheauthorisItcanbereasonablyinferredthatthea
Intheatmosphere,carbondioxideactsratherlikeaone-mirror--theglassintheroofofagreen-housewhichallowsthesun’s
随机试题
心肌不会产生强直收缩,其原因是()
A.中心静脉压低,血压低B.中心静脉压高,血压低C.中心静脉压高,血压正常D.中心静脉压低,血压正常E.中心静脉压正常,血压高提示血容量相对不足()
A.EBVB.HTLV-1C.HHV-8D.幽门螺杆菌E.衣原体非洲儿童Burkitt淋巴瘤常伴感染的病原体是
被称为"无创性心血管造影"的心脏检查方法是
下列叙述有误的一项是()。
(2006年考试真题)根据《行政复议法》的规定,下列情形中,公民、法人或者其他组织可以申请行政复议的有()。
200的5%的5%是()
奥林匹克运动会的赞助商要想通过奥运会取得商业上的成功,仅仅在名片上增加“五环”或支起帐篷招揽游客是远远不够的。近15年来,作为奥林匹克运动会的全球性赞助商,VISA国际组织认为要想有效地利用这一全球最大的体育和文化盛事,并非只是简单的往奥运圣火里扔钱的活动
【B1】【B20】
A—employeesB—personnelC—payrollD—white-collarE—blue-collarF—managementandlaborG—compensationpayoutH—benefitsI—Headhun
最新回复
(
0
)