One of the original programmers for the ENIAC computer, Teitelbaum played a pivotal role in the rise of computers. She graduated from Hunter College with a B.Sc. in Mathematics and was hired by the Moore School of Engineering to compute ballistics trajectories, before being selected as one of the first programmers for the ENIAC, which was developed to perform the same calculations.
Although she played a pivotal role in the rise of computers, Teitelbaum was given little credit toward the foundations of the ENIAC. She travelled with ENIAC to the Ballistics Research Laboratory at the Aberdeen Proving Grounds, where she remained for two more years to train the next group of ENIAC programmers.
In 1997, Teitelbaum was inducted into the Women in Technology International Hall of Fame, along with the other original ENIAC programmers.
