Computer Basics Questions

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71.

Resolution of laser printer is specified in terms of

A

DPI

B

LPM

C

CPM

D

PPM

Correct Answer: A

DPI = Dots Per Inch. Dots per inch is a measure of spatial printing or video or image scanner dot density, in particular the number of individual dots that can be placed in a line within the span of 1 inch.

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72.

A byte represents a group of

A

10 bits

B

40 bits

C

8 bits

D

22 bits

Correct Answer: C

None.

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73.

Personal computers use a number of chips mounted on a main circuit board. What is the common name for such boards?

A

Daughter board

B

Motherboard

C

Father board

D

Breadboard

Correct Answer: B

None.

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74.

What is meant by a dedicated computer?

A

Which is used by one person only

B

Which is assigned one and only one task

C

Which uses one kind of software

D

Which is meant for application software

Correct Answer: B

None.

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75.

Which key on keyboard of a computer does not have its name printed on the key?

A

ESC

B

SHIFT

C

F1

D

SPACE

Correct Answer: D

The space key does not have any thing printed on it. It is also a longest key on the keyboard.

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76.

Where would you find the letters QWERTY?

A

Mouse

B

Screen

C

Numeric Keypad

D

Keyboard

Correct Answer: D

It is the most common layout of a keyboard. The name comes from reading the first six keys appearing on the top left letter row of the keyboard ( Q , W , E , R , T , and Y ) from left to right.

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77.

How did the computer mouse get its name?

A

Its cable looks like a tail.

B

Because it squeaks when moved

C

It has ears.

D

Teeth outside mouth.

Correct Answer: A

In 1968, a man named Douglas Engelbart created this special tool to help people control their computers. It was a small wooden block on wheels, and there was a long cable sticking out of the back, kind of a tail. One of the researchers helping Mr. Douglas Engelbart with his creation called the tool a mouse.

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78.

A digitizing tablet can be used for?

A

Tracing diagrams

B

Printing letters

C

Reading bar-codes

D

Playing

Correct Answer: A

A digitizer tablet (also known as a digitizer or graphics tablet) is a tool used to convert hand-drawn images into a format suitable for computer processing. Images are usually drawn onto a flat surface with a stylus and then appear on a computer monitor or screen. Digitizer tablets can also be used as an input device, receiving information represented in drawings and sending output to a CAD (computer aided design) application and PC-based software like Auto-CAD.

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79.

Which of the following is a pointing device?

A

Hard disk

B

CD-ROM drive

C

Touch screen used for computer input.

D

RAM

Correct Answer: C

A pointing device is an input interface that allows a user to input data to a computer using physical gestures - point, click, and drag. Touch screen is also used to give an input.

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80.

What does a light pen contain?

A

Refillable ink

B

Light sensitive elements

C

Pencil lead

D

Blue Ink

Correct Answer: B

A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's CRT display.

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