Competitive Exams: Computer Science MCQs (Practice_Test 5 of 6)

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  1. If the value of maxim for the computer system used is 2147403647. Then the range of allowable integers for this particular system is
    1. 2147483647 through-2147483647
    2. -2147483647 through 2147483647
    3. 2147483647 through zero
    4. none of the above
  2. The Computer can access data stored on a hard disk more quickly than that stored
    1. on a floppy disk
    2. program
    3. memory
    4. rtbne of the above
  3. The arithmetic logic shift unit (ALSU) is a combination circuit that performs a number of arithmetic and logic arid
    1. memory unit
    2. shift micro operations
    3. control memory
    4. none of the above
  4. The block diagram of the processor unit consists Of a file of 14 registers, on ALSU, and three buses that provide the data path
    1. within the system
    2. within the unit
    3. within the tile
    4. none of the above
  5. The 14 registers in the processor unit are assigned special asks by the
    1. ALSU
    2. CPU
    3. DOR
    4. none of the above
  6. A computer usually have. Several input, and output (I/O) devices, these collectively known as
    1. function unit
    2. bit-pattern
    3. peripherals
    4. none of the above
  7. In Pascal, it is impossible-for variable values oV. Constants to be used as
    1. instructions
    2. bit pattern
    3. peripherals
    4. none of the above
  8. Irv-Pascal, in exponential notation, the number is written as a value which is multiplied by _10 to
    1. any power
    2. the appropriate power
    3. 10th power
    4. none of the above
  9. In characteristic, a plus sign (+) is to be shifted
    1. to the left a certain number of places
    2. to the zero a certain numbers of places
    3. to the right a certain number of places
    4. none of the above
  10. In characteristic, a negative sign (-) indicates that the decimal point should be shifted a certain number of places
    1. to the right
    2. to the zero
    3. to the left
    4. none of the above
  11. The standard identifiers are the words
    1. real only
    2. real, integer only
    3. real, integer, Boolean, and char
    4. none of the above
  12. User-defined identifiers are those identifiers that are supplied by the programmer to name objects or processes that are used
    1. within the database
    2. within the program
    3. within lie Pascal compiler
    4. none of the above
  13. The primary storage unit in a Computer is divided into
    1. two separate storage locations only
    2. three separate storage locations only
    3. many separate storage locations only
    4. none of the above
  14. A variable has distinct characteristic
    1. a name, a type only
    2. a value, a name only
    3. a name, a value, a type
    4. none of the. Above
  15. A variable name may be any valid user-defined identifier and serve as a symbolic name for a
    1. database only
    2. language program
    3. specific location in memory
    4. none of the above
  16. In Pascal, a data type determines both the group of possible values of the variables and the allowable
    1. identifiers
    2. operations for the variable
    3. storage location
    4. none of the above
  17. DIR is used only after a read operation, to receive the data from
    1. database
    2. data bus
    3. data-bus buffers
    4. none of the above
  18. Eight processor Registers are used as for manipulating data through
    1. data bus
    2. database
    3. program instructor
    4. none of the above
  19. The program counter, can be changed by the programmer by means of
    1. branch type instructions
    2. ordinary instructions
    3. programming language
    4. none of the above
  20. The basic model-for a digital computer is still known as the
    1. Pascal machine
    2. Neumann machine
    3. Charles Babbage machine
    4. none of the above
  21. The structure, for A sample Digital Computer referred to
    1. SDC
    2. SDCc
    3. SDQcc
    4. none Of trie above
  22. The two main categories of software are application software
    1. machine language
    2. system software
    3. high-level languages
    4. none of the above
  23. Some digital computers are called decimal/computers because
    1. decimal number can not be read in such computer
    2. decimal number can be read in such computer
    3. it does not contain decimal number
    4. none of the above
  24. Which computer is often found In small businesses and in homes and classrooms?
    1. mainframe
    2. supercomputer
    3. microcomputer
    4. none of the above
  25. Which computer՚s primary storage unit is usually smaller than that of the other types of computer?
    1. minicomputer
    2. microcomputer
    3. supercomputer
    4. none of the above
  26. A computer which uses a series of digits to represent all types of information is called
    1. a digital computer
    2. an analogue computer
    3. super computer
    4. none of the above