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Microprocessor

Microprocessor
Which of the following is not treated as hexadecimal constant by assembler in 8085?

234
6 AFH
45 H
64 H

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Microprocessor
In a microcomputer , the address of memory locations are binary numbers that identify each memory circuit where a byte is stored. If a microcomputer uses 20-bit address, then numbers of different memory locations are

 20
 220 - 1
 220
 220-1

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Microprocessor
Output of the assembler in machine codes is referred to as

 Macroinstruction
 Source program
 Object program
 Symbolic addressing

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Microprocessor
In 8085, the pins for SID and SOD are

3 and 4 respectively
5 and 4 respectively
4 and 3 respectively
4 and 5 respectively

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Microprocessor
The timing difference between a slow memory and fast processor can be resolved if

Processor is capable of waiting
Either A or B
Neither A nor B
External buffer is used

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

 Duplex
 Quadruplex
 Simplex
 Diplex

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