Objective Computer Knowledge

Q. Computers can be classified in which of the following hierarchical orders?
1 PC, Large, Super Micro, Super Computer
2 Super Micro, PC, Large, Super Computer
3 PC, Super Micro, Large, Super Computer
4 Large, Super Micro, Super Computer, PC
Ans: 3
Q. The unit of hardware, which an operator uses to monitor computer processing, is the
1 Card Reader
2 CPU
3 Line Printer
4 Console
Ans: 4
Q. The computer device primarily used to provide hard copy is the
1 CRT
2 Line Printer
3 Computer Console
4 Card Reader
Ans: 2
Q. Consider the following statements about Internet facility:
1 It serves as the largest one-line information system.
2 It provides the most dependable and latest mode for sending E-mail.
3 Recurring expenditure on communication E-mail is very high.
4 It is often misused and has triggered cyber-crimes.
Ans: 1
Q. Which is/are the main provisions of Information Technology (IT) Act, 2000?
1 Finalisation of contracts through electronic media.
2 Legal recognition to digital signatures and documents.
3 Making hacking with computer system an office.
4 All of the above
Ans: 4
Q. Which of the following circuit is used as a 'Memory device' in computers?
1 Rectifier
2 Flip-Flop
3 Comparator
4 Attenuator
Ans: 2
Q. The memory of a computer is commonly expressed in terms of Kilobytes or Megabytes. A byte is made up of
1 eight decimal digits
2 eight binary digits
3 two binary digits
4 two decimal digits
Ans: 2
Q. For reproducing sound, a CD (Compact Disc) audio player uses a
1 quartz crystal
2 titanium needle
3 laser beam
4 barium titanium ceramic
Ans: 3
Q. When a CD (Compact Disc used in audio and Video system) is seen in sunlight, rainbow like colours are seen. This can be explained on the basis of phenomenon of
1 reflection and diffraction
2 reflection and transmission
3 diffraction and transmission
4 refraction, diffraction and transmission
Ans: 4
Q. Pickup wrong definition
1 Off line - is a system peripheral equipment not controlled by CPU
2 Online - is system in which peripheral equipment is in direct contact with CPU
3 PL/I is the acronym Peripheral Listing /Index
4 Program or routine is a set sequence of instructions given to computer for problem solving
Ans: 3