Microprocessor
A microprocessor is ALU

 register unit and control unit on a single chip.
 register unit and I/O device on a single chip.
 and memory on a single chip.
 and control unit on a single chip.

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Microprocessor
The correct sequence of steps in the instruction cycle of a basic computer is

 Read effective address, Decode, Fetch and Execute.
 Fetch, Decode, Read effective address and, Execute.
 Fetch, Read effective address, Decode and Execute.
 Fetch, Execute, Decode and Read effective address.

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