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

ANSWER= (A) Floppy Disk

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2. Which device is used to backup the data?

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

ANSWER= (D) All of the above

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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

ANSWER= (A) a sound card and speakers

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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

ANSWER= (C) Compact Disks

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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

ANSWER= (B) Bytes

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

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

ANSWER= (A) Semiconductor Memories

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

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

ANSWER= (B) CD ROM

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8. Which of the following is a programming language?

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

ANSWER= (B) Pascal

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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

ANSWER= (B) A compiler converts the whole of a higher level program code into machine code in one step

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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

ANSWER= (A) An interpreter does the conversion line by line as the program is run

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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

ANSWER= (A) ANSI

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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

ANSWER= (C) The smallest resolvable part of a picture

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

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

ANSWER= (B) Mouse

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

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

ANSWER= (A) 2

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

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

ANSWER= (A) Binary

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

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

ANSWER= (D) Touch screen

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17. Which technology is used in Compact disks?

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

ANSWER= (B) Laser

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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

ANSWER= (A) Hard Disk

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

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

ANSWER= (B) seagate

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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>

ANSWER= (A) Firmware

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