Q. Consider the following statements:

1. In 8085 address and data buses are multiplexed.
2. In Z 80 address and data buses are multiplexed.
3. In Z 80 address and data buses are not multiplexed.
4. Z 80 has 16 bit address bus and 8 bit data bus.

Which of the above statements are correct?

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Q. The stack pointer holds the address of the desired memory location.

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Q. DMA stands for direct memory access.

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Q. - 56 is not a valid real constant in Fortran.

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Q. For the infix expression (A/B) * (C * F + (A - D) * E) the corresponding Post fix notation is

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Q. A PC has typically

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Q. Which of the following is true?

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Q. DMA stands for

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Q. 8085 data bus has 8 lines and is bidirectional.

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Q. It is difficult to write a program in a machine language.

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Q. A string variable in Basic is

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Q. RESET OUT signal when high indicates that

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Q. For a 16 bit computer the range of integer constants in C is

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Q. In which group of 8085 instructions condition flags are not affected?

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Q. In 8085, the instruction CMA is an example of

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Q. Assertion (A): Static RAMS are used where speed of operation is of primary concern.

Reason (R): Dynamic RAM has lower cost per bit than static RAM.

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Q. In 8085 the time required to add two 32 bit numbers is (if clock frequency is 5 MHz)

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Q. Consider the following ON GO TO statement in Basic

45 ON C GO TO 10, 20, 30

If the values of C are 1, 2, 3, 2.6 the control will be transferred to statement number

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Q. Consider the following about 'return' statement in C

1. On executing the return statement, it immediately transfers the control back to the calling program.
2. There is no restriction on the number of 'return' statements present in a function.
3. The 'return' statement must be present at the end of called function.

Which of the above are correct?

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Q. For an accurate clock period in 8085 it is preferable to use

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