Before emigrating to the US, he worked at what was then the Computer-Aided Design Centre (CADCentre) in Cambridge, UK,[2] along with his brother Dick Newell (who went on to co-found two of the most important UK graphics software companies – Cambridge Interactive Systems (CIS) in 1977 and Smallworld in 1987). At CADCentre, the two Newells and Tom Sancha developed Newell's algorithm, a technique for eliminating cyclic dependencies when ordering polygons to be drawn by a computer graphics system.[3][4][5]
Newell departed Xerox PARC to join CADLINC Inc.,[9] a factory automation startup, as VP of Advanced Development.
There he led the development of a variety of CAD/CAM software applications, such as CimCAD (a 3-D drafting program)
[10]
and Intelligent Documentation
[11]
(an early electronic document editor integrating text, graphics, and information from relational databases).
^Newell, M. E.; Newell, R. G.; Sancha, T. L. (1972). "A solution to the hidden surface problem". Proceedings of the ACM annual conference on – ACM'72. Vol. 1. p. 443. doi:10.1145/800193.569954. S2CID13829930.