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Microprocessor

Microprocessor
In Fortran 77 a variable name can contain special characters.

False
True

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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, 3 and 4
 1, 2 and 4

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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
A structure that stores a number of bits taken “together as a unit” is a

Gate
Register
Mux
Decoder

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Microprocessor
Consider the following statements: Arithmetic Logic Unit (ALU) 1.Performs arithmetic operations 2.Performs comparisons. 3.Communicates with I/O devices 4.Keeps watch on the system Which of these statements are correct?

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

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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

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

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