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Microprocessor

Microprocessor
Which one of the following circuits transmits two messages simultaneously in one direction

 Simplex
 Duplex
 Quadruplex
 Diplex

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Microprocessor
Which one of the following microprocessor is not an 8-bit microprocessor

 Z-80
 6502
 8085
 68000

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Microprocessor
The register which holds the information about the nature of results of arithmetic and logic operations is called as

 Flag register
 Process status register
 Accumulator
 Condition code register

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Microprocessor
Which of the data transfer is not possible in microprocessor

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

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Microprocessor
A microprocessor differentiates between op code, data/address at any time by

 the stack pointer
 its internal registers
 the sequence in which memory contents are fetched by it
 the program counter

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Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 960ns
 320ns
 640ns
 1280ns

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