The Computer series are images of equipment, components, and parts. The series is arranged into five subseries: Bizmac, Card punch/punch tape, Card readers, Equipment, Spectra-70. There are some overlap in the Equipment subseries. The materials date from 1944 to 1977. Related materials can be found in the Government projects series.

Research notes, correspondence, press clippings, prototypes, manuals, publications, and patents document work on computer architecture and programming languages at RCA and Komputer Pastimes.

Photographs and cassette tapes document circuitry, computers and consoles for RCA computers and games created by Weisbecker's company, Komputer Pastimes.

The Robert A. Bartolini papers are related to RCA's and the Sarnoff Corporation's research and development of optical and laser recording and storage technology. The materials include technical reports, research papers, operating system proposals, published articles covering optical recording, and photographic materials. In addition in contains folders on meetings and symposiums, presentations by and correspondence with Dr. Bartolini.

Eight of Bartolini's lab notebooks (1957-1983) can be found in Record group 26.

The Thomas M. Stiller papers are composed of user manuals for the RCA 601 computer, research notes, photographs, and a presentation.

Three of Stiller's lab notebooks (1962-1974) can be found in Record group 26.