Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ruimt..26....5r&link_type=abstract
Ruimtevaart, vol. 26, Feb. 1977, p. 5-25. In Dutch.
Astronomy and Astrophysics
Astronomy
Airborne/Spaceborne Computers, Architecture (Computers), Astronomical Netherlands Satellite, Computer Systems Design, Satellite Design, Component Reliability, Computer Storage Devices, Digital Computers, Magnetic Storage, Metal Oxide Semiconductors, Random Access Memory, Read-Only Memory Devices
Scientific paper
A descriptive review article on computers flown on satellites and their components. The evolution of integrated circuitry from SSI to LSI is sketched, and control computer architecture and functions are outlined, with attention given to computer memories, ALU, CPU, and interfacing. The ANS (Astronomical Netherlands satellite, launched August 1974) was the first European satellite to carry a computer on board. Memories surveyed include: magnetic cores, plated-wire memories, RAM semiconductor memories, MOS ROM memories, sequential-access memories, and magnetic bubbles. Computer reliability and redundancy are discussed, and some representative satellite-flown computers are compared.
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