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Microprocessor

Microprocessor
For a memory with a 16-bit address space, the addressability is

Cannot be determined
8 bits
16 bits
2^16 bits

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Microprocessor
A combinational PLD with a programmable AND array and a programmable OR array is called a

 PAL
 PLD
 PLA
 PROM

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Microprocessor
In microprocessor based system DMA refers to

 direct memory access for microprocessor
 direct memory access for the I/O device
 direct memory access for the user
None of these

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Microprocessor
Total number of modes the 8253 can work

 6
 4
 12
 8

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Microprocessor
A microprocessor without the interrupt facility

 cannot be used for DMA operation
 cannot be interfaced with any I/O devices
 is not useful for process control system
 is best suited for process control system

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Microprocessor
Assertion(A): Address bus is unidirectional. Reason(R): Data bus is bidirectional

 Both A & R are true but R is not the correct explanation of A
 A is false but R is true
 A is true but R is false
 Both A & R are true and R is the correct explanation of A

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