Unit 3 Computers reading

课件13张PPT。abacuscalculatorHuge computer PCnotebook laptopQuiz:What Do You Know About Computers?mousekeyboardprinterspeakerscannerscreenmain boardCPU
(Center processing unit)hard discfloppy disc主页硬件软件黑客防火墙病毒网站屏幕保护程序hackerscreen saversfirewallhomepagehardwaresoftwareviruswebsiteRelated computer wordsWWWBlog World Wide Web 万维网博客downloadupdate下载更新Fast reading(1min)
1、Who Am “I”?
2、Main idea?
Calculating machineAnalytical machineUniversal machineNetworkPersonal ComputerInternetbe used to _______Built by ____________; follow instructions from ____with _____Built by ________; solve ___________ problems; simple-minded and artificial intelligence; the size: small—____-smallGet new________; be changed; small & thin; get cleverer & quicker; be connected by＿＿＿＿; share…with; talk to…be brought into______be used to deal with…and communicate with..; serve transistorscalculateCharles BabbagecardsholesAlan TuringmathematicalhugenetworkhomesInternet1642182219361960s1970snowWhat will the computers be like in the future?The Development Of Computers The computer began only as a________
machine in 1642 and then in 1822 it was built as an _________ _______by Charles Babbage. Later, Alan Turing built a _________ ________to solve any ______________problem. At first, the computer was not ____ but then it became_____ and later became _______ and ________. calculatingAnalyticaluniversalmathematicalbigsmallersmallerhuge In the early 1960s, computers could be connected by a _________ and it was brought to people’s homes in 1970s. Since then, people have used computers to ____ ______ information and ____________ ____each other around the world by the ________.networkdeal withcommunicate_withInternetSummaryMachinemachinenamefatherbornMy sizeMy history:______________(1)______________(2)____________:_______(time)_______(place):______________________(earlier)
:_____________________ (in the past)
:______________________(modern)
Who am I ?: in1642 _____________
in1822 ________________________
in1936 ______________
in1960s computers got__________
in1970s______and______ conncted PCscomputer: CharlesBabbage Alan Turing
1642Francethe size of a roomBecame smaller and smallerBecame small and thinFrance ,a calculating machine Built as an Analytical MachinetransistorFinal presentationBuilt by Alan TuringinternetnetworkMy usage_____________
_____________
_____________
__________________________
_____________
_____________
_____________
_____________1.Share information
with others2.Talk to each other3.Deal with information 4.Communicate
with each otherDiscussionPost reading ( 5m )How to the make good use of internet?