A complex instruction set computer (CISC, /ˈsɪsk/) is a computer where single instructions can execute several low-level operations (such as a load from memory, an arithmetic operation, and a memory store) and/or are capable of multi-step operations or addressing modes within single instructions. The term was retroactively coined in contrast to reduced instruction set computer (RISC).
Examples of CISC instruction set architectures are System/360 through z/Architecture, PDP-11, VAX, Motorola 68k, and x86.
Famous quotes containing the words complex, instruction and/or set:
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—Ruth Formanek (20th century)
“There is in general good reason to suppose that in several respects the gods could all benefit from instruction by us human beings. We humans are—more humane.”
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—Cathy Rindner Tempelsman (20th century)