Menu
Home / ECE / Microprocessors :: Section 9

ECE :: Microprocessors

Microprocessors - Section 1
Microprocessors - Section 2
Microprocessors - Section 3
Microprocessors - Section 4
Microprocessors - Section 5
Microprocessors - Section 6
Microprocessors - Section 7
Microprocessors - Section 8
Microprocessors - Section 9
Microprocessors - Section 10
Microprocessors - Section 11
Microprocessors - Section 12
Microprocessors - Section-13

  1. In 8085 the data is stored in the stack on

    2. A.
    First in First Out basis
    B.
    Last in First Out basis
    C.
    First in Last Out basis
    D.
    Last in Last Out basis

    View Answer

    Workspace

    Discuss Discuss in Forum

  2. The organisatioion of Intel memory chip 127256 is

    3. A.
    32 K x 8
    B.
    16 K x 8
    C.
    32 K x 4
    D.
    16 K x 4

    View Answer

    Workspace

    Discuss Discuss in Forum

  3. In a micro computer the control bus

    4. A.
    transmits and receives control signals between processor and other devices
    B.
    transmits and receives control signals, also sends and receives data
    C.
    transmits and receives control signals, sends and receives data and transmits address of the device
    D.
    none of the above

    View Answer

    Workspace

    Discuss Discuss in Forum

  4. Read the following statements about time and space requirements of microprocessors

    1. Space requirement is also known as memory requirement.
    2. Space requirement is expressed in terms of bytes.
    3. Time requirement is expressed in terms of states.
    4. Time requirement is expressed in terms of μ- s.
    Which of the above statements are correct?

    5. A.
    1, 2 and 3 only
    B.
    1, 2 and 4 only
    C.
    2 and 3 only
    D.
    1 and 4 only

    View Answer

    Workspace

    Discuss Discuss in Forum

  5. Assertion (A): Microprocessor 8085 has facility of interrupt control.

    Reason (R): TRAP, RST 7.5, RST 6.5, RST 5.5 and 1NTR are interrupt signals in 8085.

    6. A.
    Both A and R are correct and R is correct explanation of A
    B.
    Both A and R are correct but R is not correct explanation of A
    C.
    A is correct R is wrong
    D.
    A is wrong R is correct

    View Answer

    Workspace

    Discuss Discuss in Forum

  6. Which characteristics of a memory chip is called dc characteristics?

    7. A.
    Organisation
    B.
    Timing characteristics
    C.
    Physical dimensions
    D.
    Power consumption and bus loading

    View Answer

    Workspace

    Discuss Discuss in Forum

  7. RAM is a volatile memory device.

    8. A.
    True
    B.
    False

    View Answer

    Workspace

    Discuss Discuss in Forum

  8. Consider the following strings

    1. A
    2. Z2
    3. X3Y
    4. P12R
    5. BX
    Which of the above strings are valid in Pascal?

    9. A.
    All
    B.
    1, 2, 3
    C.
    1, 2, 4, 5
    D.
    1, 2, 3, 5

    View Answer

    Workspace

    Discuss Discuss in Forum

  9. 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?

    10. A.
    1 and 2 only
    B.
    1, 3 and 4 only
    C.
    1, 2 and 4 only
    D.
    2 and 4 only

    View Answer

    Workspace

    Discuss Discuss in Forum

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

    11. A.
    True
    B.
    False

    View Answer

    Workspace

    Discuss Discuss in Forum

Java Programming Questions and Answers Interview Questions and Answers