Computer Sciences Practice MCQ Page 15

Multiple Choice questions for Computer Sciences in the sets of 10 each on one page with questions and answers. All sets are usefull in the preparation of subject tests for employment or admission.
Question: 145   The ALU of a computer normally contains a number of high speed storage elements called
  1. semiconductor memory
  2. registers
  3. hard disk
  4. magnetic disk
  5. none of the above
Question: 146   Memories in which any location can be reached in a fixed(and short) amount of time after specifying its address is called
  1. sequential -access memory
  2. random-access memory
  3. secondary memory
  4. mass storage
  5. none of the above
Question: 147   Which of the following is the fastest
  1. CPU
  2. magnetic tapes and disks
  3. video terminal
  4. sensor, mechanical controllers
  5. none of the above
Question: 148   Modern computers do not work with decimal numbers. Instead they process binary numbers i.e; groups of 0s and1s because
  1. electronic devices are most reliable when designed for two state (binary) operation
  2. binary circuits are simple
  3. memory is only possible for binary numbers
  4. with decimal numbers, the circuits are complex and costly
  5. with decimal numbers , processing speed is slow
Question: 149   A computer can be defined as an electronic device that can (choose the most pricizs definition)
  1. carry out arithmetical operations
  2. carry out logical functions
  3. do complicated calculations
  4. accept and process data by implementing sequentially a set of stored instructions.
  5. present information to the operator on a visual display unit
Question: 150   Stored instructions and data in digital computers consists of
  1. alphabets
  2. numerals
  3. characters
  4. scripts
  5. bits
Question: 151   A digital computer performs its computations by
  1. mechanical means
  2. analogy
  3. guessing
  4. counting
  5. none of the above
Question: 152   Binary coded decimal(BCD) numbers express each decimal digital as
  1. binary digit
  2. digits and strings
  3. nibble
  4. word
  5. byte
Question: 153   The basic operation performed by a computer is
  1. arithmetic operation
  2. logic operations
  3. storage and retrieval operations
  4. all of the above
  5. none of the above
Question: 154   who is regarded as the Father of computers?
  1. Abacus
  2. John Napier
  3. Pascal
  4. Charles Babbage
  5. Hollerith
Question: 155   the analog computer deals directly with
  1. numbers or codes
  2. measured values of continuous physical magnitude
  3. signals in the form of 0 or 1
  4. signals in discrete values from 0 to 9
  5. pulses
Question: 156   Modern computers compared to earlier computers are Integrated circuits, solid state technology faster and larger
  1. less reliable
  2. larger and stronger
  3. faster and smaller
  4. slower but more reliable
  5. faster and smaller

Answers to the questions of Computer Sciences on this page

Following list gives the correct choice for the answer of the Computer Sciences mcqs.
145 . B       146 . B       147 . A       148 . D       149 . D       150 . E       151 . D       152 . C       153 . D       154 . D       155 . B       156 . C      

MCQ for Practicing Subject Tests

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