Q. Incompatibility between memory and I/O device may be due to

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Q. When the mains supply is switched off the contents of primary computer memory are lost.

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Q. 8255 A is a

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Q. Consider the following mnemonics

1. MOV
2. ADD
3. LXI

Which of the above are valid for 8085?

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Q. A memory system has a 9 chips. If MTBF of one clip is 900 000 hours, MTBF of complete memory system is

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Q. If X = - 285.56 and the Pascal write statement used is WRITE (X : 8). Then the print out will appear as

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Q. For the Infix expression A + B - C + D the Postfix notation is

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Q. Which of the following is also called handshaking programmed data transfer?

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Q. Cache memory size is about

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Q. In the words Kb or Mb used describing memory capacity, the letter b denotes

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Q. In Fortran 77 negation is a unary operation.

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Q. Power Point is a presentation software.

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Q. In the expression a = 5 * 2 / 3.2 + 4 / 8 - 2 + 5 / 9 which operation will have the first priority in C?

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Q. In FORTRAN 77 the total number of characters in a variable can be a maximum of

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Q. The relational operators allowed in Pascal are

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Q. In 8086 the instruction ADD AL, CH means

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Q. Almost all high level languages have provision for logical operations.

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Q. In which of the following 8085 instructions is the CY flag complemented?

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Q. Consider the following statement in FORTRAN 77

READ*, [X(I) Y(I) = 0, 3, 2]

Which of the following is correct?

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Q. Assertion (A): If contents of F register in 8085 are 01010001, it means S = 0, Z = 1, AC= 1, P = 0 and CY = 1.

Reason (R): When an instruction is called from memory, the op. code of instruction is stored in instruction register.

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