Series of mainframe computers manufactured by RCA starting in 1965
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An RCA Spectra 70/45
The RCA Spectra 70 is a line of electronic data processing (EDP) equipment that was manufactured by the Radio Corporation of America’s computer division beginning in April 1965. The Spectra 70 line included several CPU models, various configurations of core memory, mass-storage devices, terminal equipment, and a variety of specialized interface equipment.[1]
The system architecture and instruction set were largely compatible with the non-privileged instruction set of the IBM System/360, including use of the EBCDIC character set. While this degree of compatibility made some interchange of programs and data possible, differences in the operating system software precluded transparent movement of programs between the two systems.
Competition in the mainframe market was fierce, and in 1971 the company sold the computer division and the Spectra 70 line to Sperry Rand, taking a huge write down in the process.
^"RCA Spectra 70" (PDF). March 1965. Retrieved 17 May 2009.
The RCASpectra70 is a line of electronic data processing (EDP) equipment that was manufactured by the Radio Corporation of America’s computer division...
mind." RCA marketed a Spectra70 computer line that was hardware, but not software, compatible with IBM's System/360 series. It also produced the RCA Series...
by Optare. Polaroid Spectra, a type of instant camera and instant film formerly produced by the Polaroid Corporation. RCASpectra70, the name for a series...
system for RCA mainframe computers of the Spectra70 series. TSOS was originally designed in 1968 for the Spectra70/46, a modified version of the 70/45. TSOS...
Computers And Automation. March 1969. p. 55. Retrieved March 21, 2019. "RC 70 Computer Reference Manual". Redcor Corporation. March 1969. Retrieved March...
the market. Management looked at the FP 6000 as well as licensing the RCASpectra70. In the end it was decided to go with the FP 6000 as the basis for a...
67 Multics for the GE 645 The Time Sharing Operating System for the RCASpectra70/46 During the 1960s and early '70s, computer memory was very expensive...
Sperry acquired RCA’s Computer division. RCA had marketed the Spectra70 Series (70/15, 70/25, 70/35, 70/45, 70/46, 70/55, 70/60, 70/61) that were compatible...
was a mainframe computer announced in 1965. It was derived from the RCASpectra70 range, itself a variant of the IBM System 360 architecture. The models...
Ammunition Plant near Minden. In January 1972, Sperry took over the RCASpectra70 line of electronic digital computers (architectural cousins to the IBM...
making a line of large IBM System/360-compatible mainframes based on the RCASpectra70, which was sold as the ICL System-4. Both 1900 and System-4 were eventually...
The System/360 became wildly successful, together with clones such as RCASpectra70, ICL System 4, and Fujitsu FACOM, thus so did EBCDIC. All IBM's mainframe...
Electric System 4 (1965) – the System 4–50 and System 4–70 were based on the RCASpectra70 series, built under licence. The latter were almost the same...
or cooperate with RCA who were re-targeting their development to a System/360 compatible range to be known as the RCASpectra70. One major consideration...
Sperry officially took over the RCA customer base, offering the Spectra70 and RCA Series computers as the UNIVAC Series 70. They redesigned the 9700, adding...
VS/9, developed by Univac (from the TSOS operating system for the RCASpectra70 series computers) for the UNIVAC Series 90 mainframe line, and the B800...
(TSOS), running on RCA's Spectra70 line of virtual memory systems and changed its name to VMOS before the Sperry acquisition of RCA CSD. After VMOS was ported...
Agriculture in 1965 and an IBM 7044 replaced the 7040 in 1966. In 1968, twin RCASpectra70/45 computer systems were commissioned at Asheville for joint use by...
The Kell factor, named after RCA engineer Raymond D. Kell, is a parameter used to limit the bandwidth of a sampled image signal to avoid the appearance...
1977. The equipment Compact Video supplied included three RCA TK-44B cameras and RCA TR-70 Quadruplex recorders. The edited programs aired in May and...
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