Computer Sciences Practice MCQ Page 2

Multiple Choice questions for Computer Sciences in the sets of 10 each on one page with questions and answers. All sets are useful in the preparation of subject tests for employment or admission.
Question: 15   processors of all computers, whether micro, mini or mainframe must have
  1. ALU
  2. primary storage
  3. control unit
  4. all of these
  5. none of the above
Question: 16   Pick up the correct statement about computers
  1. computers process data with human interven-tion after the program has been fed
  2. all comparisons are made in the control section
  3. the arithmetic-logic section of the CPU selects, interprets and executes the program steps.
  4. the secondary storage devices are usually connected on line to the CPU but for accepting data from them or returning data to them, human intervention is required
  5. computers have the built in ability to obey different types of instructions.
Question: 17   Real time computing is possible because of the following characteristic of computer
  1. storage capability
  2. high speed
  3. accuracy
  4. versatility
  5. automatic in execution
Question: 18   Pick out the wrong statement about modern computer systems
  1. these are simple and easy to take care of
  2. even beginners, untrained persons can safely handle them
  3. they require a highly disciplined approach
  4. it is important to understand the proper handling of each element proper overall procedures must be followed
  5. the negligent use of a computer system will almost always introduce time bobs into the system.
Question: 19   A collection of eight bits is called
  1. byte
  2. word
  3. record
  4. file
  5. none of these
Question: 20   choose the incorrect statement about micro computers, mini-computers, etc
  1. a microcomputer can be placed on a single silicon chip
  2. a minicomputer can have more processing capability than a mainframe model
  3. a microcomputer chip performs the arithmetic-logic and control functions of a microcomputer
  4. ROM chips may be used in micros to permanently store program instruction
  5. most micros use rigid disk storage devices rather than floppy disk drives.
Question: 21   Control Unit of a digital computer is often called the
  1. clock
  2. nerve center
  3. ICs
  4. all of the above
  5. none of the above
Question: 22   Pick up the correct statement
  1. most mainframes are 48-bits machines
  2. thousands of super computers are currently being built
  3. super-computers are usually designed to process accounting applications
  4. mainframes may have multi-processor components that permit several tasks to be processed at the same instant in time
  5. minicomputers can not use high-speed buffer storage components and are thus always slower than mainframe models.
Question: 23   the following acronym recognizes the fact that "computer errors" can usually ve traced to incorrect input data or unreliable programs
  1. GIGO
  2. FIFO
  3. LIFO
  4. DASD
  5. ROM
Question: 24   Group of instructions that directs a computer is called
  1. storage
  2. memory
  3. logic
  4. program
  5. none of the above
Question: 25   Which of the following does not describe one or more characteristic of a computer?
  1. electronic
  2. external storage
  3. stored program
  4. program modification at execution
  5. all of the above are characteristics.
Question: 26   Which of the following statement is true?
  1. the smart approach to using computers is to write programs
  2. knowledge of the system development life cycle is not important to operators who use computers without programming
  3. hands-on exposure to the computer is not helpful to those who write programs
  4. personal computers have been an important contributing factor in the movement toward using computers without programming
  5. none of the above

Answers to the questions of Computer Sciences on this page

Following list gives the correct choice for the answer of the Computer Sciences mcqs.
15 . D       16 . E       17 . B       18 . B       19 . A       20 . E       21 . B       22 . D       23 . A       24 . B       25 . D       26 . D      

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