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Computer Hardware

Description: Computer Hardware
Number of Questions: 20
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Tags: Computer Hardware
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Resolution of display card is

  1. the number of pixels

  2. the number of colours

  3. the amount of memory

  4. the speed of CPU


Correct Option: A
Explanation:

It is correct becuase the resolution of a display card is measured in pixels and also depends on the pixel size. As the number of pixel increases the display will become more clear.

External modem requires a/an __________ to get powered on.

  1. AC adapter

  2. Ethernet adapter

  3. DC adapter

  4. Data cable


Correct Option: A
Explanation:

This answer is the correct because an external modem will work properly only with an AC adapter.

Output of a blue colour wire in a SMPS is

  1. -12v DC

  2. 13v DC

  3. 22v DC

  4. 23v DC


Correct Option: A
Explanation:

This answer is correct because -12v DC is reqiured at pin 12 where a blue colour wire is located in a SMPS.

The output of red colour wire in a SMPS is

  1. +5v DC

  2. +12v DC

  3. -5v DC

  4. -3.3v DC


Correct Option: A
Explanation:

This answer is correct because +5v DC is required by the red colour wire in a SMPS .

Which IRQ number is used by floppy disk controller?

  1. 1

  2. 5

  3. 6

  4. 8


Correct Option: C
Explanation:

This IRQ number is used for floppy disk controller.

Which of the following is the type of logical memory?

  1. RAM

  2. EEPROM

  3. Pen drive

  4. Extended Memory


Correct Option: D
Explanation:

It is a type of Logical memory. Extended memory is available in 286 and later processor based computers.

In a colour monitor, 1 pixel is represented by ___________.

  1. triad

  2. nibble

  3. both (1) and (2)

  4. btye


Correct Option: A
Explanation:

This answer is correct because triad is used to represent 1 pixel.

In a DVD- ROM, tracks are placed ________ mm apart.

  1. 0.74

  2. 10

  3. 164

  4. 74


Correct Option: A
Explanation:

This answer is correct because it is the perfect distance between the tracks, so that more data can be stored.

To which port of computer system can pen drive connect?

  1. USB

  2. PS/2 port

  3. Serial port

  4. Parallel port


Correct Option: A
Explanation:

Pen drive can connect to the USB port of the computer system. This port is also known as plug n play port.

Which power connector is used to supply power to the motherboard?

  1. PCI

  2. AGP

  3. PS/2

  4. ATX


Correct Option: D
Explanation:

It is the power connector used to supply power to the motherboard.

How many pins does a DIMM package contain?

  1. 144 pins

  2. 168 pins

  3. 172 pins

  4. 72 pins


Correct Option: B
Explanation:

Dimm is a 168 pin package. A 168-pin DIMM package has 84 pins on each side of the package.

Baby AT motherboard supports maximum of _____ slots.

  1. 7

  2. 8

  3. 2

  4. 4


Correct Option: B
Explanation:

Baby AT form factor supports maximum of 8 slots.

Which of the following is also known as printed circuit board in the computer system?

  1. RAM

  2. Micro-processor

  3. Motherboard

  4. Jumper


Correct Option: C
Explanation:

Mother board is also known as printed circuit board where all the components of a sytem are connected.

_______________ store(s) the time and settings of a system.

  1. Memory slots

  2. CPU socket

  3. CMOS chip

  4. BIOS chip


Correct Option: C
Explanation:

CMOS chip stores the time and settings of the system. The CMOS battery saves the settings and time when the computer is switched off.

IRQ 8 is assigned to ________.

  1. keyboard

  2. network card

  3. sound Card

  4. real time clock


Correct Option: D
Explanation:

IRQ 8 is assigned to real time clock.

With the help of which scanner can you scan photo slides?

  1. Slide scanner

  2. Drum scanner

  3. Flat bed scanner

  4. Sheet fed scanner


Correct Option: A
Explanation:

You can scan photo slides with the help of a slide scanner. The use of slide scanners thus enables people to digitalize photographs.

The scanning surface of a scanner is made up of _________.

  1. plastic

  2. wood

  3. ceramic

  4. glass


Correct Option: D
Explanation:

Glass is used because it is able to reflect the light and is transparent also.

You can use the ______________ scanner for scanning large individual sheets of paper.

  1. slide

  2. sheet

  3. sheet fed

  4. drum


Correct Option: C
Explanation:

This type of scanner is very versatile in scanning loose sheets of paper. However, it cannot scan bound documents.

Which of the following memories is used by a pen drive?

  1. Flash memory

  2. Cache memory

  3. Physical memory

  4. RAM

  5. ROM


Correct Option: A
Explanation:

Pen drive is a non-volatile memory device. Flash memory is a high density device and non-volatile also. It is fast in reading and writting data because it writes data in chunks and blocks.
ROM is not used by pen drive.

One nibble is equivalent to

  1. 4 bits

  2. 8 bits

  3. 32 bits

  4. 16 bits

  5. None of these


Correct Option: A
Explanation:

1 nibble is equivalent to 4 bits.
Option 1 is correct. 

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