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RISC
-A limited number of instructions are available
-An instruction performs a simple task
-complex tasks can only be performed by combining a number of instructions
-so a task may take a number of machine cycles
-each instruction takes 1 cycle
-fewer addressing modes
-fewer instructions
-one or more register sets
CISC
-Uses complex instructions each of which may take multiple cycles.
-Many instructions are available.Many addressing modes are available.
-Instructions have variable format.A task may be completed by a single instruction as instructions are more complex than individual instructions in RISC.
-Programs run more slowly due to the complicated instructions/ circuit.
-Increased hardware cost.
-Many instructions may be redundant
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