Q. Which of the following identifiers is valid in Pascal?

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Q. In 8085 the data is stored in the stack on

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Q. The organisatioion of Intel memory chip 127256 is

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Q. In a micro computer the control bus

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Q. Read the following statements about time and space requirements of microprocessors

1. Space requirement is also known as memory requirement.
2. Space requirement is expressed in terms of bytes.
3. Time requirement is expressed in terms of states.
4. Time requirement is expressed in terms of μ- s.

Which of the above statements are correct?

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Q. Assertion (A): Microprocessor 8085 has facility of interrupt control.

Reason (R): TRAP, RST 7.5, RST 6.5, RST 5.5 and 1NTR are interrupt signals in 8085.

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Q. In which of the following 8085 instructions is the 8 bit number in accumulator adjusted to form two four bit BCD numbers

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Q. In 8085 the address space size is

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Q. In 8085 the instruction MOV A, B is an example of

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Q. Pagemaker is an application software for DTP.

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Q. Assertion (A): Logical group of instructions contains instructions for logic operations.

Reason (R): Data transfer group instruction is basically a copying instruction.

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Q. The chip 8257 is a

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Q. Both ROM and RAM can be accessed randomly.

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Q. Windows have a user friendly program called 'Front Page Express' for creating web pages.

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Q. The number of pins in microprocessor 8086 is

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Q. The input to ALU are the contents of accumulator and temporary register.

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Q. As compared to operating current, the current drawn by a memory chip in stand by mode is

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Q. Which characteristic of a memory chip is called ac characteristics?

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Q. Which of the following alphanumeric characters is not allowed in Basic?

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Q. A machine cycle has one clock cycle.

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