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第14篇

UNIT 14 Information Systems Today

Information technology is important and indispensable to the life of human beings.

Transmission, recording or memory and processing of information

are three essential process of information. Virtually, the information technology

has been changing everyday. The basic challenge of the coming decade

is how to make the already available technologies as useful and friendly to a user as the telephone

or television set is to the common man. Computers are a major segment of the new information technologies.

The constant growth of semiconductor technology and the proliferation of the semiconductor memory devices

has brought possibilities that you use personal computers to do anything you want to,

for instance, record a message and phone back an answer. With the help of satellite communication,

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