Q. Assertion (A): PC-XT is a personal computer.

Reason (R): PC-XT uses a floppy drive and has a medium sized hard disc.

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Q. In Intel 8085, the integer range per word length is

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Q. Assertion (A): Structures are useful in DBMS.

Reason (R): Structures are very large numbers of applications besides DBMS.

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Q. If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is

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Q. The use of microprocessor control in automobiles results in

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Q. The timing difference between a slow memory and fast processor can be resolved if

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Q. In 8086 the number of bytes which can be addressed directly is about

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Q. Consider the following statements about DRAM

1. Page mode read operation is faster than R̅A̅S̅ read
2. R̅A̅S̅ input remains active during column address strobe
3. The row and column addresses are strobed into the internal buffers using R̅A̅S̅ and C̅A̅S̅ inputs respectively

Which of the above statements are correct?

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Q. In Fortran 77 a variable name can contain special characters.

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Q. Consider the following statements

1. EEPROM has the problem of high write time.
2. EEPROM has the problem of limited number of write cycles.
3. Shadow RAM has the problem of high write time.

Which of the above statements are correct?

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Q. Which of the following is not a general purpose peripheral?

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Q. Each instruction in assembly language program has the following fields:

1. Lable field
2. Mnemonic field
3. Operand field
4. Comment field

The correct sequence of these fields is?

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Q. In one's complement 8 bit representation 11111111 represents

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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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