![]() ![]() The execution unit is responsible for decoding and executing all instructions. This unit helps improve system performance by eliminating some conflicts for the bus (bus contention). prefetch queue The_ simply acts as a buffer between the instruction register and the bus controller. Instruction Pointer This is the program counter. 16 80 are _ bit processors Bus Interface Unit This is responsible for fetching an instruction, the operand of an instruction or data from the MM. These 16-bit microprocessors have multiplication and division instructions. Both are 16-bit ɥp's and can execute instructions in as little as 400 ns. ![]() 8086 In 1978, Intel released the_ microprocessor and a year later the 8088. 8085 In 1977, the _ processor was released.
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