(Mims later referred to this as 'Screwdriver-Programmable Read Only Memory', SPROM.) The memory was searched by a motor driven switch that compared the resistance of the input word with each memory resistor. When a match was found the motor would stop and one of 20 output lamps would be on. This was not a practical language translator, but it was an impressive science fair project for the early 1960s. Mims wrote an article for the December 1987 issue of describing his homebrew analog computer complete with schematics and photographs. Mims entered Texas A&M University in the fall of 1962 as a physics major.
The mathematics courses convinced him to major in liberal arts. He graduated in 1966 with a major in government with minors in English and history. When Mims started at Texas A&M it was an all-male military school. In 1964 the university began admitting women, and membership in the Corps of Cadets became optional. Mims pursued his electronics while at A&M. His great-grandfather was blind, and this led Mims to create a travel aid for the blind.
This device was similar to RADAR, except it used the newly developed infrared-emitting diode to send intense pulses of light that reflected from obstacles. The returned light was converted to an audio tone that increased in amplitude as the distance to the obstacles was reduced. The infrared diodes had just been introduced by Texas Instruments in 1965 and sold for $365 each. Mims visited Dr. Edwin Bonin of Texas Instruments and explained his project.