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Microprocessor

Microprocessor
DMA is used between

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

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Microprocessor
The characteristics of RESET OUT signal is/are

 indicates that µp is being reset.
 the signal is synchronized to the processor clock.
 this signal can be used to reset other devices.
 all.

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Microprocessor
SUB A instruction in 8085

 reset carry and sign flags
 reset zero and parity flags
 sets zero and carry flags
 sets zero and sign flags

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Microprocessor
The character set of Fortran 77 includes lower case alphabets a to z.

False
True

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

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Microprocessor
Consider the following registers: 1. Accumulator and flag register 2. B and C register 3. D and E register 4. H and L register Which of these 8-bit registers of 8085 microprocessor can be paired together to make a 16-bit register?

 1, 2 and 3
 2, 3 and 4
 1, 2 and 4
 1, 3 and 4

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