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Microprocessor

Microprocessor
A microprocessor with a 12-bit address bus will be able to access

 10 K bytes
 8 K bytes
 1 K bytes
 4 K bytes

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Microprocessor
Assuming LSB is at position 0 and MSB at position 7, which bit positions are not used (Undefined) in flag register of an 8085 microprocessor?

 1, 3, 5
 1, 3, 4
 2, 3, 5
 1, 2, 5

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Microprocessor
The number of status flags present in 8085 microprocessor are

 16
 8
 5
 10

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

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

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Microprocessor
A structure that stores a number of bits taken “together as a unit” is a

Gate
Decoder
Register
Mux

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Microprocessor
DMA is used between

 microprocessor and I/O
 none
 memory and I/O
 microprocessor and memory

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