Home / ECE / Microprocessors :: Section 8

ECE :: Microprocessors

  1. A microprocessor needs memory chips and input-output chip to form a microcomputer.

  2. A.
    True
    B.
    False

  3. The maximum number of alphabets/digits or special symbots for character constants in C is

  4. A.
    1
    B.
    2
    C.
    4
    D.
    8

  5. Windows automatically starts CD player when one inserts audio CD in CD-ROM drive.

  6. A.
    True
    B.
    False

  7. In 8086 the word address is

  8. A.
    the address of the least significant byte
    B.
    the address of most significant byte
    C.
    either (a) or (b) depending on the word
    D.
    neither (a) nor (b)

  9. The instruction MOV r1, r2 in 8085

  10. A.
    causes contents of registers r2 to be moved to r, and uses register addressing
    B.
    causes contents of registers r1 to be moved to r2 and uses register addressing
    C.
    causes contents of registers r1 to be moved to r2 and uses register immediate addressing
    D.
    causes contents of registers r2 to be moved to r1 and uses register immediate addressing

  11. Assertion (A): The variable name 5KING is not valid in Fortran 77.

    Reason (R): In Fortran 77 the first character of a variable name must be an alphabet.

  12. 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

  13. Which 8085 instruction causes exchange of contents of stack pointer with the contents of H L register pair?

  14. A.
    XTHL
    B.
    PCHL
    C.
    LHLD
    D.
    MVIA

  15. The four types of integers in Java are called

  16. A.
    byte, short, int and long
    B.
    bit, byte, short and long
    C.
    nibble, byte, short and long
    D.
    nibble, byte, int and long

  17. Consider the following statements about data structures in Pascal

    1. Arrays and files are types of data structures.
    2. List structure is not a data structure in Pascal.
    3. Each element of a binary tree is called a node of the tree.
    Which of the above are statements correct?

  18. A.
    All
    B.
    1, and 2 only
    C.
    1 and 3 only
    D.
    2 and 3 only

  19. In the expression 3 * * 2 ** 4 ** 2 in FORTRAN 77 which exponentiation is performed first

  20. A.
    4 * * 2
    B.
    2 * * 4
    C.
    3 * * 2
    D.
    all exponentiation are performed together