A CDE Definition
(1) See race condition and RACE encoding.
(2) (Research And Development of Advanced Communications) A European program of telecommunications R&D introduced in 1987. Over the subsequent 10-year period, more than 100 projects were undertaken.
(3) (Random Access Card Equipment) An early magnetic card mass storage device from RCA that was used with its IBM-compatible Spectra 70 mainframes. The units read and wrote data on a deck of 4x18" cards with a magnetic recording surface. The card was released from the cartridge, passed down a raceway, wrapped around a read/write head and returned. Operating in the late 1960s, the machine jammed frequently, and an operator had to remain nearby to extricate and replace the damaged cards. See CRAM, Data Cell and racetrack memory.
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