Microprocessor
Which one of the following statement is false?

 A microprocessor has an ALU
 A microprocessor has bi-directional address bus
 A microprocessor has unidirectional address bus
 A microprocessor has bi-directional data bus

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Microprocessor
The stack pointer register in a microprocessor

 counts the number of programs being executing on the microprocessor
 counts the number of instructions being executing on the microprocessor
 keeps the address of the next instruction to be fetched
 holds the address of the top of the stack

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