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* * With the development of science and technology, many new things appear in human being’s life. Let’s guess what they are: 1. With me you can watch different programmes just at home. I’m a machine that has a screen with moving pictures and sounds. But watching me too much is bad for your eyes. TV set 2. I am a machine which moves very fast on four wheels. You need a license(执照) and must be very careful when you drive me. Rolls Royce, Benz and BMW are some famous kinds of me. car 3. I am a machine which is a good helper in doing house work. I wash clothes for people. Who am I? washing machine 4. A machine that you use to talk to other people even in a far-away place. We are connected by wire or radio. Now each of us often has a number. Who am I? telephone 5.It is a machine, which you can use to type your homework, draw pictures, play games, watch movies, listen to music, communicate with your friends, gather information… Computer it is a kind of computer which can be taken conveniently like a notebook. A laptop What English words do you know about computers? What is it in English?? mouse 鼠标 What is it in English?? CPU (central processing Unit) 中央处理器 What is it in English?? Main board(主板) What is it in English?? Display / Monitor computer I nternet S earch K eyboard C lick E- mail B log B G ill ates E- pal Components of a computer Scanner Printer Monitor Floppy Disk Mouse Speaker Timeline The computer began as a calculating machine The computer grew rapidly both in size and in brainpower. The computer had grown as large as a room. 1960s Computers were used in offices and homes. Computers connect people all over the world together. 1642:_______________________________________________ 1822:The Analytical Machine was made by Charles Babbage. 1936:_____________________________________________ _________________________________________ 1940s:_________________________________________ _____: The first family of computers was connected to
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