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Microprocessor

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

Cannot be determined
8 bits
2^16 bits
16 bits

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

 18
 8
 12
 16

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Microprocessor
Which one of the following statement is false?

 A microprocessor has an ALU
 A microprocessor has bi-directional address bus
 A microprocessor has unidirectional address bus
 A microprocessor has bi-directional data bus

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Microprocessor
The clock speed of 8085 is

 1KHz.
 1MHz.
 3.2MHz.
 3.2KHz.

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Microprocessor
The processor status word of 8085 microprocessor has five flags namely:

 S, OV, AC, P, CY
 S, Z, AC, P, OV
 S, Z, AC, P, CY
 S, Z, OV, P, CY

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Microprocessor
While CMP B instruction executes,

 only carry and zero flags will be affected.
 only carry flag will be affected.
 no flags will be affected.
 all flags will be affected.

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