Input Devices - Research Article from Macmillan Science Library: Computer Sciences

This encyclopedia article consists of approximately 4 pages of information about Input Devices.
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Types of Input Devices

Digital Cameras.

A digital camera records and stores photographic images in digital form that can be fed to a computer for viewing and printing. First, the impressions are recorded or stored in the camera. The picture can then be downloaded to a computer by removable disk or by parallel port connection.

Light Pens.

A light pen uses a photodetector in the tip of the pen, which can be moved around the screen to move a corresponding cursor.

Magnetic Stripe Readers and Magnetic Tape.

Magnetic stripe readers are used to read alphanumeric data from a magnetized stripe on a card, such as a credit card. Magnetic tape can be easily rewritten and stored indefinitely. There are two basic tape mechanisms: reel-to-reel and cartridge. Generally, reel-to-reel tape drives are used with large mainframe computers. Smaller computers use tape cartridges. Regardless of type, the tape is...

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This section contains 982 words
(approx. 4 pages at 300 words per page)
Buy the Input Devices Encyclopedia Article
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Macmillan Science Library: Computer Sciences
Input Devices from Macmillan Science Library: Computer Sciences. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
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