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

    2. A.
    -32768 to + 32767
    B.
    -32767 to + 32768
    C.
    -65536 to + 65535
    D.
    -65535 to + 65536

    View Answer

    Workspace

    Discuss Discuss in Forum

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

    3. A.
    Data transfer group
    B.
    Arithmetic group
    C.
    Logical group
    D.
    Both (a) and (c)

    View Answer

    Workspace

    Discuss Discuss in Forum

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

    4. A.
    Implict addressing
    B.
    Direct addressing
    C.
    Register addressing
    D.
    Immediate addressing

    View Answer

    Workspace

    Discuss Discuss in Forum

  4. 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.

    5. 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

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

    6. A.
    about 1 ns
    B.
    about 1 μs
    C.
    about 30 μs
    D.
    about 100 μs

    View Answer

    Workspace

    Discuss Discuss in Forum

  6. DMA stands for

    7. A.
    Direct Memory Address
    B.
    Distributed Memory Address
    C.
    Direct Memory Accumulator
    D.
    Decimal Machine Address

    View Answer

    Workspace

    Discuss Discuss in Forum

  7. 8085 data bus has 8 lines and is bidirectional.

    8. A.
    True
    B.
    False

    View Answer

    Workspace

    Discuss Discuss in Forum

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

    9. A.
    True
    B.
    False

    View Answer

    Workspace

    Discuss Discuss in Forum

  9. A string variable in Basic is

    10. A.
    an alphabet followed by dollar sign
    B.
    a digit followed by dollar sign
    C.
    either (a) or (b)
    D.
    neither (a) nor (b)

    View Answer

    Workspace

    Discuss Discuss in Forum

  10. RESET OUT signal when high indicates that

    11. A.
    program counter etc. are being set
    B.
    program counter etc. are being reset
    C.
    either (a) or (b)
    D.
    none of the above

    View Answer

    Workspace

    Discuss Discuss in Forum

Java Programming Questions and Answers Interview Questions and Answers