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 Computer Questions

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Q:

The output quality of a printer is measured by

A) Dots per line B) Dots printed per unit time
C) Dots per inch D) All of the above
 
Answer & Explanation Answer: C) Dots per inch

Explanation:

DPI [Dots Per Inch] is a measurement of output quality of printer resolution. It represents number of ink dots the printer can place in an area of one square inch. The lesser the DPI the less sharper the image and vice versa.

 

Therefore, a printer that may have 400 DPI, a printer that can print 400 x 400 per square inch or 1,60,000 dots per inch.

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Q:

Which of the following is not an Operating System?

A) Windows Vista B) Linux
C) Microsoft Office D) Apple's Mac OS
 
Answer & Explanation Answer: C) Microsoft Office

Explanation:
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Q:

Which of the following stores data permanently in a computer?

A) ALU B) Cache Memory
C) RAM D) ROM
 
Answer & Explanation Answer: D) ROM

Explanation:
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Q:

The Android operating system is the embedded version of ________.

A) Linux B) macOS
C) UNIX D) Windows
 
Answer & Explanation Answer: A) Linux

Explanation:
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Q:

Which three parts of the computer receive input?

 

A) MICR, Barcode readers, Touch-screens B) Keyboard, ALU, Printers
C) Keyboard, Mouse, Printers D) Printers, MICR, Touch-screens
 
Answer & Explanation Answer: A) MICR, Barcode readers, Touch-screens

Explanation:

The main function of input devices is to direct commands and data into computers. Computers then use their CPU to process this data and produce output.

 

Examples of input devices - keyboards, mouse, barcode readers, Magnetic Ink Character Readers (MICR), Optical Character Readers (OCR), touch screens, etc...

 

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Q:

A word processor would most likely be used to do

A) type a biography B) maintain an inventory
C) a word processor would most likely be used to do D) do a computer search in media center
 
Answer & Explanation Answer: A) type a biography

Explanation:
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Q:

CPU speed is measured in

Answer

CPU speed is measured with the processors speed which is measured in MIPS (Million Instructions Per Second), Flops (Floating-point operations per second) and CPU clock speed (usually measured in gigahertz). 

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6 1795
Q:

 ______________ among the following is not a type of JavaScript.

 

A) text/JavaScript B) text/ecmascript
C) text/vbscript D) JavaScript vbscript
 
Answer & Explanation Answer: D) JavaScript vbscript

Explanation:
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