您正在查看 "电脑英语" 分类下的文章 2007/12/02 19:03 2007/12/02 18:41 Unit 5 The Internet
Exercise:
选择项:unexpected;importance;networking;standards;share
The Internet
Originally funded by the US Department of Defense and the National Science Foundation, the Internet is now paid for and operated by the thousands of institutions that use it . A
committee known as the Internet Engineer |
2007/12/02 18:41 Unit 4 Operating System
1 Fill in the blanks ( primary,used,deveoped,owned,Dominant)
During the 1980s and 1990s,DOS(for disk operating system) was the _______ operating system
for microcmputers.There are two _________ forms of DOS:PC-DOS and MS-DOS.Both were origin-
ally _______ by Microsoft Corporation,but PC-DOS was created originally for IBM microcomp-
ters,whereas MS-DOS was________ with IBM-compatible PCs.PC-DOS is now ____ |
2007/12/02 18:39 Unit 3 Computer Software
1 The operating system is a set of system that,when executed,controls the_______ of the
computer.Sophisticated operating systems increase the ________ and consequently decrease
the ________ cost of using a computer.Operating systems provide a software _______on top
of which other programs,called _______ application programs,can run.The application programs must be written to run on top of a particular ope |
2007/12/02 18:37
Unit 2 Hardware
Fill in the blanks : I/O Devices
Whenever you see your computer, you supply the information (input) and expect a result(out-
put).Your computer uses pieces of hardware called ________to receive input and ____ output.
For example,when you type a _______ ,your computer receives input from your keyboard ,and usually sends output to your ________.It can also receive input from a mouse, or send output
to |
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