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Computing (FOLDOC) dictionary
parallel random access machine
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parallel (PRAM) An idealised parallel processor consisting
of P processors, unbounded shared memory, and a common
clock. Each processor is a random access machine (RAM)
consisting of R registers, a program counter, and a
read-only signature register. Each RAM has an identical
program, but the RAMs can branch to different parts of the
program. The RAMs execute the program synchronously one
instruction in one clock cycle.