Q. Assertion (A): Magnetic tape can be accessed only sequentially.

Reason (R): Magnetic tape consists of magnetised spots or tracks.

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Q. Assertion (A): Most PCs use static RAM for main memory.

Reason (R): Static RAM is faster than dynamic RAM.

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Q. Consider the following statements

1. A 33 MHz 486 has higher MIPS than 33 MHz 386.
2. A 33 MHz 486 has higher MFLOPS than 33 MHz 386

of these statements.

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Q. Assertion (A): Microprocessor 8085 has 16 address bus lines and 8 data bus lines.

Reason (R): Address bus in 8085 is unidirectional.

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Q. IC 74181 has two select lines.

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Q. Plug and play is a hardware specification.

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Q. If the absolute value of a number is less than decimal 1, the sign of exponent in floating point representation is

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Q. Which of the following is not a library string function in C?

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Q. Assertion (A): A two byte instruction of 8085 has an operation code in first byte and operand / address in the second byte.

Reason (R): If an instruction is too long it is possible to reduce its length by a number of methods.

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Q. In computers the size of secondary memory is usually much larger than that of primary memory.

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Q. In 8085

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Q. Which of the following directives in 8085 causes two bytes to be reserved in the memory?

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Q. In 8086 the flag which enables or disables external interrupts is

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Q. Which of the following is a valid integer variable in Fortran 77?

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Q. 8255 A has three 8 bit ports A, B, C for peripheral data transfer. For programming 8255 A, these ports are grouped as

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Q. 'WRITE' is a

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Q. The number of key words in C is

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Q. In which of the following 8085 instructions no condition flags are affected?

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Q. Assertion (A): In register indirect addressing mode of 8085, the address of operand is in the specified register.

Reason (R): An example of register indirect addressing mode is MOV, A, M..

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Q. A high level language is less efficient than machine language.

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