[3] His studies were interrupted and in 1942 he served in the US Army Signal Corps as a tabulating machine operator, and had a short stint working at IBM.
[4] Stein did his Ph.D. at the Institute for Numerical Analysis at UCLA (or INA, an ancestor of UCLA's computer science department), where in the summer of 1949 he participated in a seminar on solving linear equations and finding eigenvalues and eigenvectors of matrices with several other future luminaries of the domain, including Magnus Hestenes, J. Barkley Rosser, George Forsythe, Cornelius Lanczos, Gertrude Blanch, and William Karush.
[6] After earning his Ph.D. from the INA in January 1951, Stein was hired as a senior research engineer by aircraft manufacturer Convair in southern California.
Rand offered to simply give the university 400 free hours on a UNIVAC 1103 on the condition that they hire a dedicated faculty member to oversee its operations.
[9] In 1967, Stein created - with William Munro, Neal Amundson, and Hans Weinberger - the university's graduate program in Computer and Information Sciences.
[2] In 1964, Stein wrote Computer Programming: A Mixed Language Approach with contributor William Munro for Academic Press.
[13] It was written with the intention to provide instruction in assembly language programming to both professional programmers and highly technical laypersons.