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Microprocessor

Microprocessor
How many 16-bit special purpose registers are present in 8085 microprocessor?

 2
 8
 16
 6

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Microprocessor
Which of the following pair of gates can form a latch?

A pair of cross copled AND
A pair of cross coupled OR
A cross coupled NAND/OR
A pair of cross coupled NAND

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Microprocessor
A bus connected between the CPU and main memory that permits transfer of information between main memory and the CPU is known as

 Control bus
 Address bus
 DMA bus
 Memory bus

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

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Microprocessor
A microprocessor differentiates between op code, data/address at any time by

 the stack pointer
 the sequence in which memory contents are fetched by it
 its internal registers
 the program counter

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Microprocessor
In microprocessor based system I/O ports are used to interface

 the O/P devices only
 all the I/O devices
 the I/O devices and memory chips
 the I/P device only

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