Display | MCQs

Explanation

A Light Emitting Diode (LED)

A light-emitting diode is a semiconductor device that emits light when current flows through it

LED lighting products produce light up to 90% 

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Invented:

H. J. Round (1907);

Oleg Losev (1927);

James R. Biard (1961);

Nick Holonyak (1962)

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First production: October 1962

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VU FIA CBT  14-12-2021

ND5-5-2023

Explanation

 LCD Stands for "Liquid Crystal Display."

LCD is a flat panel display technology commonly used in TVs and computer monitors.

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VU FIA PAPER 18-12-2021

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ND16-1-2023

Explanation

• The formula bar displays the content of the active cell in MS Excel.
  • The formula bar can be used to edit the content of any cell and can be expanded to show multiple lines for the same formula.

Additional Information 

• The name box in the worksheet displays the address of the selected cell.
• The title bar displays the title of the window and It includes the close, minimize, and maximize buttons.
• An active cell refers to a cell in an Excel spreadsheet that is currently selected by clicking the mouse pointer or keyboard keys.

Explanation

• The output shown on the computer monitor is called a soft copy
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• The output that is displayed on the computer’s monitor is considered a soft copy.
• The computer’s monitor is the computer’s display unit.
• As the operations are conducted, the function or operation that is done through the software files on the computer can be seen.
• The files are saved either by the user or by a default that often exists.
• In both instances, the output becomes the data operation’s soft copy.

Explanation

The basic unit of programmable color on a computer display or in a computer image. Pixel is also define as dots per inch, which indicates the resolution of an image.

Explanation

Dot pitch (also known as pixel pitch) is the distance between two same-colored pixels on a screen.

A smaller dot pitch means a sharper and clearer display quality.

Explanation

• The Taskbar is used for: Navigation programs, Switching between programs and Starting a program.
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• Taskbar elements. The Start button, a button that invokes the Start menu
• Ctrl + Esc displays the hidden task bar. 

• AGM 08-2-2023

Explanation

A pixel (picture element) is the smallest unit of a digital image.

Higher pixel count = Sharper image (e.g., 4K resolution has 3840×2160 pixels).

Explanation

Dot pitch refers to the distance between pixels on a monitor, affecting pixel density per inch.

It influences the sharpness and clarity of the display image.

Explanation

The cathode ray tube (CRT) is a vacuum tube that contains one or more electron guns

and a phosphorescent screen, and is used to display images.