Microprocessor
‘Burst refresh’ in DRAM is also called

Hidden refresh
None of these
Distributed refresh
Concentrated refresh

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 2000H. POP H instruction will transfer the contents of memory location

 2001H and 2000H to H and L registers respectively
 2001H and 2002H to H and L registers respectively
 2000H and 1FFFH to H and L registers respectively
 2000H and 1999H to H and L registers respectively

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Microprocessor
In a vector interrupt

 the branch address is obtained from a register in the processor.
 the branch address is assigned to a fixed location in memory.
 the interrupting source supplies the branch information to the processor through an interrupt vector.
 none.

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Microprocessor
PUSH B instruction in 8085 microprocessor causes

 registers B & C to be cleared
 the contents of register B only to be copied in the stack
 the contents of registers B & C to be transferred in the stack and and the registers get cleared
 the contents of register B & C to be copied in the stack

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Microprocessor
When referring to instruction words, a mnemonic is

 a short abbreviation for the operation to be performed.
 a short abbreviation for the data word stored at the operand address.
 shorthand for machine language.
 a short abbreviation for the operand address.

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Microprocessor
DS directive in 8085

Forces the assembler to reserve a specified number of bytes in the memory
None of these
Forces the assembler to reserve a specified number of consecutive bytes in the memory
Forces the assembler to reserve one byte of memory

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