Top 1000+ Solved Important Computer MCQs For Competitive Exams part-1 MCQ Questions Answer
Q. The temporary or volatile memory of a computer is erased when the computer is turned off. Accordingly, the computer user before turning off the machine must transfer anything in the memory which is important to
a. control unit
b. ALU
c. CPU
d. permanent memory
e. None of these
Q. Which of the following tasks is not suited for sequential processing by a computer?
a. Preparing of mailing labels
b. Processing payroll cheques
c. Accounting for credit card purchases
d. Inventory control
e. None of these
Q. The most expensive component in acomputer system is its
a. hardware
b. peripherals
c. software
d. All of these
e. None of these
Q. What is the name of the meftiory card which is conceptually related to the smart card but is similar to the video disk?
a. Laser card
b. Master card
c. Visa
d. Optical card
e. None of these
Q. The time taken for the read/write head to move to the correct track on the magnetic disk is called
a. epoch delay
b. latency delay
c. seek time
d. approach time
e. None of these
Q. A flat-bed plotter uses a pen which moves in two directions across a piece of paper fixed on a flat-bed. Can you tell who controls the movements of this pen?
a. Microfilm
b. Microfiche
c. Film card
d. COM
e. None of these
Q. Which of the following printer can be classified as a page-at-a-time printer?
a. Laser printer
b. Dot-matrix printer
c. Thermal printer
d. Inkjet printer
e. None of these
Q. What is the function of the ‘home key1in amicrocomputer qwerty keyboard?
a. To capitalize letters
b. To reposition the cursor
c. To interrupt executions
d. To cancel the entry
e. None of these
Q. Most of the errors blamed on computers are actually due to
a. programming errors
b. hardware fatigue
c. defects in floppy disks
d. data entry errors
e. None of these
Q. File specification books are created primarily for the use of
a. systems analysts
b. programmers
c. operators
d. managers
e. None of these
Q. The storage within the addressing scheme of the computer but exceeding the physical capacity is called
a. address space
b. overlay storage
c. secondary storage
d. scratchpad memory
e. None of these
Q. Plotters print
a. with ball point pens
b. with ink pens
c. electrostatically
d. All of these
e. None of these
Q. Which generation of computers used transistors?
a. First generation
b. Second generation
c. Fourth generation
d. All of these
e. None of these
Q. In MODEMS
a. several digital signals are multiplexed
b. a digital signal changes some characteristic of a carrier wave
c. digital signal is amplified
d. All of these
e. None of these
Q. In digital data transmission
a. baud rate is equal to bit rate
b. baud rate is always smaller than the bit are
c. baud rate is always higher than the bit rate
d. baud rate is not constant
e. None of these