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Microprocessor

Microprocessor
Using one 8259 IC is equivalent to providing …………. INTR pins on 8085

 12
 16
 18
 8

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Microprocessor
Consider the following statements: In 8085 microprocessor, data-bus and address bus are multiplexed in order to I)Increase the speed of microprocessor. II)Reduce the number of pins. III)Connect more peripheral chips. Which of these statements is/are correct?

 (I), (II) & (III)
 (I) only
 (II) only
 (II) & (III)

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Microprocessor
If the number of address bits in a memory is reduced by 2 and the addressability is doubled, the size of the memory (i.e., the number of bits stored in the memory)

Halves
Doubles
Increases by 2^(address bits)/addressability
Remains unchanged

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Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 245
 244
 246
 247

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

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

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Microprocessor
The addressing mode in instruction PUSH B is

 register
 register indirect
 direct
 immediate

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