Computer Latest And Basic mcqs For PPSC,FPSC

Important mcqs of Computer Science

1. Mostly which of the following device is used to carry user files?

A) Floppy Disk
B) HARD DISK
C) CD ROM
D) RAM

2. Which device is used to backup the data?

A) Floppy Disk
B) Tape
C) Network Drive
D) All of the above

3. In order to play and hear sound on a computer, one needs:

A) a sound card and speakers
B) a microphone
C) all of them required
D) none of them required

4. Which of the following are the cheapest memory devices in terms of Cost/Bit?

A) Semiconductor memories
B) Megnetic Disk
C) Compact Disks
D) Magnetic Tapes

5. Which of the following are the best units of data on an external storage device?

A) Bits
B) Bytes
C) Hertz
D) Clock Cycle

6. Which of the following have the fastest access time?

A) Semiconductor Memories
B) Magnetic Disks
C) Magnetic Tapes
D) Compact Disks

7. Which of the following is a read only memory storage device?

A) Floppy
B) CD ROM
C) Hard Disk
D) None of these

8. Which of the following is a programming language?

A) Lotus
B) Pascal
C) Excell
D) Netscape

9. What is a compiler?

A) A compiler does a conversion line by line as the program is run
B) A compiler converts the whole of a higher level program code into machine code in one step
C) A compiler is a general purpose language providing very efficient execution
D) None of the above

10. What is an interpreter?

A) An interpreter does the conversion line by line as the program is run
B) An interpreter is the representation of the system being designed
C) An interpreter is a general purpose language providing very efficient execution
D) None of the above

11. When a key is pressed on the keyboard, which standard is used for converting the keystroke into the corresponding bits?

A) ANSI
B) ASCII
C) EBCDIC
D) None of the above

12. A Pixel is ………

A) A computer program that draws picture
B) A picture stored in secondary memory
C) The smallest resolvable part of a picture
D) None of the above

13. Which device is used as the standard pointing device in a Graphical User Environment?

A) Keyboard
B) Mouse
C) Joystick
D) Trackball

14. Which number system is usually followed in a typical 32-bit computer?

A) 2
B) 10
C) 16
D) 32

15. Which device is used as the standard pointing device in a Graphical User Environment?

A) Binary
B) Decimal
C) Hexadecimal
D) Octal

16. Which of the following is not an output device?

A) Scanner
B) Printer
C) Flat Screen
D) Touch Screen

17. Which technology is used in Compact disks?

A) Mehanical
B) Laser
C) Electrical
D) Electro Magnetic

18. Which of the following storage devices can store maximum amount of data?

A) Hard Disk
B) Floppy Disk
C) Compact Disk
D) Electro Magnetic Disk

19. Which of the following is the largest manufacturer of Hard Disk Drives?

A) IBM
B) Seagate
C) Microsoft
D) Bluecode

20. The programs which are as permanent as hardware and stored in ROM is known as

A) Firmware
B) Hardware
C) Software
D) Shareware/label>