Microprocessor
‘Burst refresh’ in DRAM is also called

Hidden refresh
None of these
Concentrated refresh
Distributed refresh

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Microprocessor
Which of the following statements for intel 8085 is correct?

 PC specifies the address of the instruction being executed
 PC specifies the number of instructions executed so far
 PC specifies the address of the instruction to be executed
 Program Counter (PC) specifies the address of the instruction last executed

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Microprocessor
When RET instruction is executed by any subroutine then

 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.
 without any operation, the calling program would resume from instruction immediately following the call instruction.
 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.

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Microprocessor
The stack pointer register in a 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
 counts the number of programs being executing on the microprocessor

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