Light Pen
Light pens provide a very precise pointing capability directly on the screen.
Computer Desktop Encyclopedia THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.Copyright © 1981-2010 by Computer Language Company Inc. All rights reserved.
First Light Pen
This handmade prototype of a "light gun" in 1952 was part of the Whirlwind Project at MIT. Subsequent devices were used to hone in on suspicious blips on the CRT in the U.S. air defense system (see Whirlwind and SAGE). (Image courtesy of The MITRE Corporation Archives.)
Computer Desktop Encyclopedia THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.Copyright © 1981-2010 by Computer Language Company Inc. All rights reserved.
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