[1] He later went on to work on the design of the ENIAC computer while at the Moore School of Electrical Engineering at the University of Pennsylvania.
[2][3] Lubkin afterwards joined the US Army's Ballistic Research Laboratory to work with other ENIAC designers on the design of the EDVAC computer's programming system,[4][5][6] It has been claimed that the "Operating Manual for the EDVAC", which was authored by Lubkin, was "the bible of the computer industry in the late 1940s and early 1950s".
[8][9] In the 1940s, Reeves Instrument Corporation hired Lubkin to lead a project designing their first digital computer.
Even as a fledgling enterprise, the company was able to hire several very experienced engineers who had a pedigree in large corporations like the Eckert–Mauchly Computer Corporation (creator of the ENIAC), as prominent Jewish scientists and engineers were losing their security clearance (and consequently, their defense sector jobs) as a result of the House Un-American Activities Committee, which sometimes equated Jewish heritage with Communist sympathies.
[11] The main product of this company was a "low cost" (for the time) digital computer named the ELECOM 100.
There was a unit known to be at the Stevens Institute of Technology in New Jersey, but is unknown who else the ELECOM's early users were, and how many were made.
This was essentially the ELECOM 100 (which worked on an octal system) modified for decimal operation, and given expanded memory capacity.
[9] Lubkin would go on to work as a designer and consultant for computer projects with New York University, Curtiss-Wright, and Republic Aviation.