Like all electronic equipment, computers have become smaller and more sophisticated with time. They have evolved from the enormous mainframes of the 1970s to thin little laptops, financially accessible to a growing number of people and capable of performing innumerable tasks.(1) ________________________________________. With scanners and digital cameras, for example, the world of publishing and photography has entered the home. Long-distance learning has been made possible for students in isolated or distant areas thanks to computer-assisted teaching. Computer games have added a whole new dimension to home entertainment. (2) ________________________________________. Perhaps no other machine has had a greater impact on our lives than computers. With modems and servers, personal computers can now be connected through telephone lines to create networks of people and businesses who are able to communicate with each other almost instantly by e-mail. Like most aspects of computer culture, the Internet has its positive and its negative side. For example, electronic mail has become so popular and so easy that it has become a problem. (3) ___________________________________________.Computer technology has affected virtually every aspect of our lives from satellites in outer space that relay television programs to the microchip in our hand calculator.Computer technology has added considerably to the efficiency and quality of life, but it has also contributed to the stress of modern life, especially in the workplace.
发表于 2015-10-27 09:40
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