Telephone Switching and the Early Bell Laboratories Computers

Abstract

This article summarizes the salient features of seven relay‐type computers designed and built at Bell Telephone Laboratories. Emphasized are features derived from telephone technology and the role played by the Bell Laboratories designs in advancing the computer art.

IBM Data Communications: A Quarter Century of Evolution and Progress

“…Probably the earliest occurrence of a terminal operating interactively with a computer over communications facilities can be traced to a demonstration conducted by Bell Laboratories for the American Mathematical Society in September 1940 [6]. Bell had built a relay computer, which was installed in their laboratory in New York City.…”

A fully quantum calculation of broadening and shifting coefficients of the D1 and D2 spectral lines of alkali-metal atoms colliding with noble-gas atoms

“…The Baranger model builds directly from the work of Jabloński [1] and is a fully quantum-mechanical model. Like Anderson-Talman [2][3][4], Baranger assumes the reference frame of the emitter/absorber atom. Baranger uses the impact approximation, which assumes that the duration of a 1 Author to whom any correspondence should be addressed.…”