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фируза
22.10.2020 12:17:03
Англ. язык 10-11 класс
10 баллов
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Input hardware
The purpose of the input hardware is to collect data and convert it into a form suitable for computer processing. The most common input device is a keyboard. It looks very much like a typewriter. The mouse is a hand held device connected to the computer by small cable. As the mouse is rolled across the mouse pad, the cursor moves across the screen. When the cursor reaches the desired location, the user usually pushes a button on the mouse once or twice to signal a menu selection or a command to the computer.
The light pen uses a light sensitive photoelectric cell to signal screen position to the computer. Another type of input hardware is optic-electronic scanner that is used to input graphics as well as typeset characters. Microphone and video camera can be also used to input data into the computer. Electronic cameras are becoming very popular among the consumers for their relatively low price and convenience.
Ирина Каминкова
0
22.10.2020 12:49:58
1) What is the purpose of the input hardware?
2) What input device is the most common?
3) How is the mouse connected to the computer?
4) What should the user do to move the cursor across the screen?
5) When does the user usually push a button on the mouse?
6) How many times does the user push a button on the mouse?
7) What does the user do, when the cursor reaches the desired location?
8) What cell does the light pen use to signal the screen position to the computer?
9) What data can the optic-electronic scanner input?
10) What is the whole list of the input hardware mentioned in the article?

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