Download - ED 11-Computer
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More About Computer
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COMPUTER
An electronic device that stores, retrieves, and processes data, and can be programmed with instructions. It is composed of hardware and software, and can exist in a variety of sizes and configurations.
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OUTPUT DEVICES
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PRINTER
Prints our work onto a paper.
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SPEAKERS
Speakers produce music or sound.
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HEADPHONES
Headphones are put over our head to listen to music or sound.
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INPUT DEVICES
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SCANNER
A scanner scans a picture.
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MICROPHONE
Microphone records voice or sound.
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WEBCAM
A webcam captures moving images which can be sent through the Internet.
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Types of Computers
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Desktop Computer
Desktop computers are designed for use at a desk or table. They are typically larger and more powerful than other types of personal computers.
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Laptop Computer
Laptop computers are lightweight mobile PCs with a thin screen. They are often called notebook computers because of their small size. Laptops can operate on batteries, so you can take them anywhere.
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Handheld computers
Also called personal digital assistants (PDAs), are battery-powered computers small enough to carry almost anywhere. Although not as powerful as desktops or laptops, handhelds are useful for scheduling appointments, storing addresses and
phone numbers, and playing games.
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Tablet PCs
Tablet PCs are mobile PCs that combine features of laptops and handhelds. Like laptops, they're powerful and have a built-in screen. Like handhelds, they allow you to write notes or draw pictures on the screen.
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