Q. The operating modes of 8255 A are called

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Q. Which of the following is type declaration statement in C?

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Q. The number of categories in which registers are classified in μP are

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Q. In the expression b = 2.1 / 1.2 * 3.1 + 3 / 7.1 * 6 which operation would have the first priority in C?

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Q. Consider the instructions

1. MOV M, B
2. OUT 4
3. LDAX

Which of the above require memory write cycle?

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Q. Read the following statements about address space in microprocessors

1. An address space is a set of all possible addresses which can be generated by a microprocessor.
2. Each address in the address space allows a designer to provide at least one memory or I/O location in the system.
3. Two types of address spaces are memory and I/O address space.
4. Some micro processors have only one type of address space.

Which of the above are correct?

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Q. In 8085

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Q. Some words like READ, WRITE, STOP etc. cannot be used as variable names in Fortran 77.

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Q. Which of the following 8085 instructions do not effect CY flag?

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Q. A compiler converts a high level computer program into machine language program.

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Q. In 8085, the pairing of registers B, C, D, E, H, L is

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Q. Internet is a worldwide network of computers where most of the information is freely available.

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Q. A 37 bit mantissa has an accuracy of

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Q. In a C expression using assignment operators, relational operators and arithmetic operators, the hierarchy of operations (in the absence of parenthesis) is

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Q. In 8085, the pins for SID and SOD are

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Q. Assertion (A): Each memory chip has its own address latch.

Reason (R): ALE signal comes out of microprocessor 8085 and goes to memory chip.

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Q. The number of interrupt lines in 8085 is

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Q. If KMT = 100, LITRES = 5.0, PCOST = 28.0 and OPCOST = 70.0 what will be the result of the following FORTRAN 77 program?

INTEGER KMT
REAL LITRES, PCOST, OPCOST, PKCOST READ *, KMT,
LITRES, PCOST, OPCOST, PKCOST
KMPL = KMT/LITRES PKCOST = (PCOST * LITRES + OPCOST)/ KMT

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Q. A real number consists of

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Q. Assertion (A): Negative values of incremental operator in DO loop are allowed in Fortran 77 but not in earlier versions of Fortran.

Reason (R): Fortran 77 has better array facilities than earlier versions of Fortran.

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