Computer Science Basic(Computer Science ) Questions and Answers

Question 1. In order to play and hear sound on a computer, one needs:
  1.    a sound card and speakers
  2.    a microphone
  3.    all of them required
  4.    none of them required
Explanation:-
Answer: Option A. -> a sound card and speakers
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 2. Mostly which of the following device is used to carry user files?
  1.    Floppy Disk
  2.    Hard Disk
  3.    RAM
  4.    CDROM
Explanation:-
Answer: Option A. -> Floppy Disk
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3. Which device is used to backup the data?
  1.    Floppy Disk
  2.    Tape
  3.    Network Drive.
  4.    All of the above
Explanation:-
Answer: Option D. -> All of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4. Which of the following is a programming language?
  1.    Lotus
  2.    Pascal
  3.    MS-Excel
  4.    Netscape
Explanation:-
Answer: Option B. -> Pascal
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 5. What is a compiler?
  1.    A compiler does a conversion line by line as the program is run
  2.    A compiler converts the whole of a higher level program code into machine code in one step
  3.    A compiler is a general purpose language providing very efficient execution
  4.    None of the above
Explanation:-
Answer: Option B. -> A compiler converts the whole of a higher level program code into machine code in one step
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 6. Which of the following have the fastest access time?
  1.    Semiconductor Memories
  2.    Magnetic Disks
  3.    Magnetic Tapes
  4.    Compact Disks
Explanation:-
Answer: Option A. -> Semiconductor Memories
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 7. Which of the following are the best units of data on an external storage device?
  1.    Bits
  2.    Bytes
  3.    Hertz
  4.    Clock cycles
Explanation:-
Answer: Option B. -> Bytes
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 8. Which of the following is a read only memory storage device?
  1.    Floppy Disk
  2.    CDROM
  3.    Hard Disk
  4.    None of these
Explanation:-
Answer: Option B. -> CDROM
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 9. Which of the following are the cheapest memory devices in terms of Cost/Bit?
  1.    Semiconductor memories
  2.    Magnetic Disks
  3.    Compact Disks
  4.    Magnetic Tapes
Explanation:-
Answer: Option C. -> Compact Disks
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 10. What is an interpreter?
  1.    An interpreter does the conversion line by line as the program is run
  2.    An interpreter is the representation of the system being designed
  3.    An interpreter is a general purpose language providing very efficient execution
  4.    None of the above
Explanation:-
Answer: Option B. -> An interpreter is the representation of the system being designed
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
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