Microprocessor
The length of bus cycle in 8086/8088 is four clock cycles, T1, T2, T3, T4 and an indeterminate number of wait state clock cycles denoted by Tw. The wait states are always inserted between

 T4 & T1
 T1 & T2
 T2 & T3
 T3 & T4

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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 control unit on a single chip.
 and memory on a single chip.

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Microprocessor
When RET instruction is executed by any subroutine then

 without any operation, the calling program would resume from instruction immediately following the call instruction and also the PC will be incremented after the execution of the instruction.
 without any operation, the calling program would resume from instruction immediately following the call instruction.
 the top of the stack will be popped out and assigned to the PC.
 the PC will be incremented after the execution of the instruction.

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Microprocessor
Assertion(A): The frequency of 8085 system is ½ of the crystal frequency. Reason(R): Microprocessor (8085) requires a two phase clock.

 Both A & R are true but R is not the correct explanation of A
 A is true but R is false
 A is false but R is true
 Both A & R are true and R is the correct explanation of A

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