Citation
For his work at the Xerox Palo Alto Research Center, where he was a major force, both technical and inspirational, in the development of the SMALLTALK language and its graphics facilities. He is the design of the BITBLT primitive that is now widely used for generating images on raster-scan displays. The combination of a good idea, a good design, and very effective and careful implementation has led to BITBLT's wide acceptance in the computing community. Mr. Ingalls' research has also directly and dramatically affected the computing industry's view of what people should have in the way of accessible computing.