Computer Overview

1. Dinesh finds that his computer is not responding , what could be the reason?

a.      The clock rate is faster than the maximum processing speed of the microprocessor

b.      More than 10 applications were used at the same time on the computer

c.      One of the applications reported an illegal operation while saving

d.      The processor is incompatible with the motherboard

2. Raju wants to add a live photograph of the school function in his word document, which device should he use :

a.      Web camera

b.      Printer

c.      Scanner

d.      Modem

3. You want to take home the consolidated report you have created to work on it , the report is 260 MB in size, which storage media should you use?

a.      Floppy disk

b.      Hard disk

c.      CD-ROM

d.      Random Access Memory

4. What is true about an uninterruptible power supply (UPS). :

a.      The UPS maintains power supply for as long as there is a power failure

b.      The UPS gives a warning beep before a power failure

c.      The UPS maintains power supply for a certain period of time after a power failure

d.  The UPS saves data periodically

    5.     You usually work with many files open but you find that in that case performance of your computer is            very slow. How would you solve the problem?

1. Restart the system
2. Reinstall the operating system
3. Increase the amount of the RAM
4. Increase the capacity of the hard disk

6.      Shabnam wants to record her voice and live image . Which one of the following combinations of devices will she need?

1. Microphone and Webcam
2. Microphone and speaker
3. Microphone and modem
4. Microphone and video card

7.      You have submit the result prepared by you on your computer to the principal. The size of the file totals 1.4 MB. Which one of the following storage media should you use to make a  copy of the file?

a.      Floppy disk

b.      Hard disk

c.      CD-ROM

d.      DVD

8.     Ravi switches off the computer by simply pressing off the power switch and finds that every time he starts the computer it checks the disk system for errors. What should he do?

      a.      Do not allow unauthorised users to work on computer

b.      Check the floppy disks for virus infection before reading from them

c.      Install a UPS .

d.      Enforce complete shutdown every time before  switching off the computer

    9. Arif has bought a new computer but he feels a headache every time he views the display on the monitor due to a horizontal line going up. What should he do?

            a.      Increase the vertical frequency of the monitor

b.      Decrease the screen resolution of the monitor

c.      Increase the horizontal frequency of the monitor

d.      Increase the screen resolution of the monitor

10. Which one of the following is not true about RAM and ROM?

    1. RAM stores start-up instructions for a computer whereas ROM holds programs and data for processing

b.   RAM is volatile whereas ROM is permanent

c.   RAM is a temporary storage media.

d.   RAM can be increased.

11. You do not want to switch off the computer as you have to work on it in 15 minutes again but you also do not want anybody to see what you are doing. Which of the following measures would you follow to do so?

    1. Lock the computer.
    2. Set a screen saver
    3. Close all the applications running on the computer
    4. Turn off the monitor

BACK TO HOME PAGE