Q. Assertion (A): An instruction cycle consists of fetch and execute cycles.

Reason (R): Fetch cycle has one machine cycle but execute cycle may have one or more machine cycles depending on length of instruction.

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Q. Instruction cycle is the time required to complete the execution of an instruction.

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Q. The contents of F register in 8085 are 01010001. This means

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Q. In a microprocessor

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Q. The number of select lines in ALU 1C 74181 is

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Q. In a computer MPU is the centre of all operations and control.

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Q. Assertion (A): A RAM with access time of the order of hundreds of nano seconds is suitable for a control memory.

Reason (R): The time taken to execute an operation in a microcomputer is critically de pendent on access time of control memory.

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Q. The statement ! (b < 5) in C means

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Q. Which data transfer scheme is used when large block of data is to be transferred in a computer?

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Q. Fortran 77 has six arithmetic operators.

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Q. Windows can run several tasks simultaneously.

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Q. Assertion (A): 1C 74181 is an ALU in TTL 7400 series.

Reason (R): 1C 74181 can accept two 4 bit words and can perform any one of possible 16 arithmetic or logic operations.

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Q. The instruction LDA 20 in 8085 means

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Q. Intel 2004 is a

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Q. The programming language in which Excel records the macro code is

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Q. The 8085 instruction LDA FFA is an example of

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Q. A mP contains 2 MHz crystal. The time taken to complete instructions with 1000 cycles is

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Q. Consider the following statement in Fortran 77

READ *, (X.(I), I = 0, 4)

Which of the following is correct?

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Q. Which of the following methods does not cause any reduction in instruction length?

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Q. In a microprocessor the clock signal

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