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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