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Microprocessor

Microprocessor
Which one of the following microprocessor is not an 8-bit microprocessor

 Z-80
 6502
 8085
 68000

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations

 0FFE H and 0FFF H
 1000 H and 1001 H
 0FFF H and 0FFE H
 1000 H and 0FFF H

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Microprocessor
If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is

A larger floating point number
Either A or B depending on the actual number
A smaller floating point number
A negative floating point number

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Microprocessor
Which of the data transfer is not possible in microprocessor

 memory to accumulator
 I/O device to accumulator
 memory to memory
 accumulator to memory

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Microprocessor
The number of output pins in 8085 microprocessors are

 27.
 40.
 19.
 21.

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Microprocessor
The program counter in a 8085 micro-processor is a 16-bit register, because

 It facilitates the user storing 16-bit data temporarily
 It has to fetch two 8-bit data at a time
 It counts 16-bits at a time
 There are 16 address lines

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