Encyclopedia > Light pen

  Article Content

Light pen

A light pen is a device connected to a computer, that when pointed at a computer display senses whether or not the spot is illuminated. It then sends the information to the computer. The first light pen was used around 1957 on the Lincoln TX-0 computer at the famed Lincoln Labs at MIT. Light pens became moderately popular during the early 1980s but largely faded later in the decade with the rise of mouse-based WIMP interfaces as well as changes in monitor technology.

See also: Graphics tablet



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Canadian Charter of Rights and Freedoms

... many of the rights and freedoms that are protected under the Charter these were sometimes known as the Implied Bill of Rights. The Canadian Bill of Rights, which the ...

 
 
 
This page was created in 24.4 ms