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Microprocessor

Microprocessor
How many 16-bit special purpose registers are present in 8085 microprocessor?

 8
 6
 16
 2

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Microprocessor
PSW stands for

 flag byte
 accumulator and flag register contents
 accumulator contents
 none

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Microprocessor
In a computer the data transfer between hard disk and CPU is nearly the same as that between diskette and CPU.

True
False

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Microprocessor
Consider the following registers: 1. Accumulator and flag register 2. B and C register 3. D and E register 4. H and L register Which of these 8-bit registers of 8085 microprocessor can be paired together to make a 16-bit register?

 2, 3 and 4
 1, 2 and 3
 1, 2 and 4
 1, 3 and 4

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Microprocessor
Maximum of how many devices can be connected simultaneously to the microprocessor via 8257 in DMA data transfer mode?

 6
 8
 10
 4

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Microprocessor
When an 8085 microprocessor is reset, the address bus contains

 0043H
 002CH
 0000H
 003CH

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