Here is some important question may be asked in government exam (CAT, MAT), IBPS (PO and Clerk), SSC, SBI, LIC and other competitive exams.

• Which of the following is a single-user operating system?
  (a) MS-DOS (b) UNIX (c) XENIX (d) OS/2
  Ans- c


• Which of the following is volatile?
  (a) RAM (b) EEPROM (c) EPROM (d) ROM
  Ans- a


• The input device that is closely related to touch-screen is the–
  (a) Keyboard (b) Light pen (c) Scanned (d) Joystick
  Ans- b


• Which one of the following attributes is not applicable to an interpreter?
  (a) Consumers’ less time (b) Very expensive (c) Simplicity (d) None of these
  Ans- b

• The storage device used to conpensate for difference in rates of flow of date from one device to another is termed as–
  (a) Chip (b) Channel (c) Floppy (d) Call (e) Buffer
  Ans- c


• The computer is a machine and all other equipments associated with it, are termed as–
  (a) Hardware (b) Software (c) Firmware (d) Humanware (e) None of these
  Ans- a


• A Program that converts a high-level computer program into set of instructions that will run on a machine is called–
  (a) an editor (b) a linker (c) a compiler (d) a debugger
  Ans- c


• Low power, single transistor call and in-system re-writability are the features associated with–
  (a) SRAM (b) Flash (c) EEPROM (d) ROM
  Ans- b


• To select a sentence using mouse, click anywhere on the sentence while holding down the following key–
  (a) CTRL (b) ALT (c) SHIFT (d) SHIFT + CTRL
  Ans- a


• The go to statement causes the control to go to–
  (a) an operator (b) a variable (c) a label (d) a function
  Ans- c


• The total number of registers with 32-bit width in the motorda MC 68000 microprocessor is–
  (a) 4 (b) 8 (c) 15 (d) 10
  Ans- c


• Windows can work in which of the following mode?
  (a) Expanded (b) Extended (c) Enhanced and standard (d) Compressed
  Ans-c


• Windows in popular because of its–
  (a) GuI features (b) desktop technology (c) multi-tasking capacity (d) being expensive
  Ans-a


• The liquid crystal display works on the basis of the relation between–
  (a) light intensity variation (b) voltage and current (c) temperature and volume (d) polarization and electric field
  Ans- d


•  ………. Needs a compiler to compile the source code.
  (a) BASIC (b) C/C++ (c) d Base (d) ORACLE
  ANS- b