Top 1000+ Solved Important Computer MCQs For Competitive Exams part-1 MCQ Questions Answer
Q. A secondary storage device with immediate access to any part of the stored data is
a. direct access device
b. printer
c. keyboard
d. punched card
e. None of these
Q. A computer in which data is represented by a continuously variable physical quantity is
a. digital computer
b. analog computer
c. hybrid computer
d. machine-in-build computer
e. None of these
Q. The basic unit within a computer store capable of holding a single unit of data is
a. register
b. ALU
c. control unit
d. store location
e. None of these
Q. A group of characters used to identify a given low-level instruction is
a. file
b. record
c. key field
d. label
e. None of these
Q. A location which is sometimes protected, used for specific purposes only is
a. control unit
b. CPU
c. register
d. memory
e. None of these
Q. The working principles of today’s computers were provided by an English mathematician
a. Charles Babbage
b. Dr. Hollerith
c. Donald Reach
d. Ken Reidcr
e. None of these
Q. A group of characters treated as an entity within some computer is a
a. block
b. pack
c. word
d. All of these
e. None of these
Q. A device used to bring information into a computer is
a. ALU
b. input device
c. control unit
d. output device
e. None of these
Q. The part of a computer system that enables human operators to communicate with the computer is
a. control unit
b. CPU
c. console
d. ALU
e. None of these
Q. A digital device that processes data is known as
a. data processor
b. data entry
c. DBMS
d. database
e. None of these
Q. The part of the total storage of a computerfrom which instructions are executed is
a. secondary storage
b. main storage
c. RAM
d. CPU
e. None of these
Q. A pen shaped device which can sense light, and is used to point at spots on a video screen is a
a. mouse
b. light pen
c. joystick
d. plotter
e. None of these
Q. Which of the following is a non volatile memory?
a. PROM
b. magnetic tape
c. magnetic bubble memory
d. RAM
e. None of these
Q. Which of the following can be used to control the movement of a cursor on a video screen?
a. Mouse
b. OCR
c. Card punch
d. joystick
e. None of these
Q. In digital computer, all the expressions are coded into
a. Octal digits
b. Binary digits
c. Hexadecimal digits
d. decimal digits
e. None of these