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Bill Atkinson

William Dana Atkinson (March 17, 1951 – June 5, 2025) was an American computer engineer, computer programmer and photographer. Atkinson worked at Apple Computer from 1978 to 1990. Some of Atkinson's noteworthy contributions to the field of computing include Macintosh QuickDraw and Lisa LisaGraf (Atkinson independently discovered the midpoint circle algorithm for fast drawing of circles by using the sum of consecutive odd numbers), regions, marching ants, the menu bar, the selection lasso, MacPaint (FatBits), HyperCard, Atkinson dithering, and the PhotoCard application program.

Also recorded as William Dana Atkinson

Bill Atkinson

Commodore's Ball 2014

Isles Yacht Club · CC BY 2.0

Name
Bill Atkinson
Birth Name
William Dana Atkinson
Born
17 March 1951
Birthplace
Ottumwa, Iowa, U.S.
Died
5 June 2025
Place of death
Portola Valley, California, U.S.
Education
UC San Diego University of Washington
Occupation
* Engineer
Known for
* Apple Lisa
Nationality
United States

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William Dana Atkinson (March 17, 1951 – June 5, 2025) was an American computer engineer, computer programmer and photographer. Atkinson worked at Apple Computer from 1978 to 1990. Some of Atkinson's noteworthy contributions to the field of computing include Macintosh QuickDraw and Lisa LisaGraf (Atkinson independently discovered the midpoint circle algorithm for fast drawing of circles by using the sum of consecutive odd numbers), regions, marching ants, the menu bar, the selection lasso, MacPaint (FatBits), HyperCard, Atkinson dithering, and the PhotoCard application program.

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Authority files

wikidata · Q92788 · wikipedia · Bill Atkinson

In this article

  1. 01Biography
  2. 02Visual art and other activities
  3. 03Notes, references and evidence

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