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Microprocessor

Microprocessor
Using DeMorgan’s Theorem we can convert any AND-OR structure into

NAND-NOR
NAND-NAND
NOR-NAND
OR-NAND

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Microprocessor
Pick out the matching pair

 HOLD; DMA
 S0;S1;wait status
 READY; RIM
 SID; SIM

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Microprocessor
Number of Hex digits needed to represent the 20-bit address of a memory location are

 16
 5
 4
 20

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Microprocessor
Which of the data transfer is not possible in microprocessor

 memory to memory
 I/O device to accumulator
 accumulator to memory
 memory to accumulator

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Microprocessor
Length of the instruction POP D is

 3 byte
 1 byte
 2 byte
 4 byte

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Microprocessor
The program counter in a 8085 micro-processor is a 16-bit register, because

 It facilitates the user storing 16-bit data temporarily
 It has to fetch two 8-bit data at a time
 It counts 16-bits at a time
 There are 16 address lines

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