Computer Questions

Q:

What characteristic of read-only memory (ROM ) makes it useful?

A) ROM informationcan be easily updated B) Data in ROM is non volatile, that is, it remains there even without electrical power
C) ROM provides very large amounts of inexpensive data storage D) ROM chips are easily swapped between different brands of computers
 
Answer & Explanation Answer: B) Data in ROM is non volatile, that is, it remains there even without electrical power

Explanation:
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Q:

C, BASIC, COBOL, and Java are examples of ............language

A) low-level B) programming
C) computer D) high-level
 
Answer & Explanation Answer: D) high-level

Explanation:
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Q:

CD-ROM is a semiconductor memory.

A) TRUE B) FALSE
Answer & Explanation Answer: B) FALSE

Explanation:

"CD-ROM is a semiconductor memory" is a FALSE statement.


 


Compact Disc-Read-Only Memory, a type of optical disk capable of storing large amounts of data -- up to 1GB, although the most common size is 650MB (megabytes). A single CD-ROM has the storage capacity of 700 floppy disks, enough memory to store about 300,000 textpages.


 


Semiconductor memory is a type of semiconductor device tasked with storing data. There are two electronic data storage mediums that we can utilize, magnetic or optical.


 


Magnetic storage:


* Stores data in magnetic form.


* Affected by magnetic fields.


* Has high storage capacity.


* Doesn't use a laser to read/write data.


* Magnetic storage devices are; Hard disk , Floppy disk, Magnetic tape etc.


 


Optical storage:


* Stores data optically, uses laser to read/write.


* Not affected by magnetic fields.


* Has less storage than a hard disk.


* Data accessing is high, compared to a floppy disc.


* Optical storage devices are; CD-ROM,CD-R, CD-RW, DVD etc.


 


There is also volatile memory. This is memory that loses its data once power is cut off, while non-volatile memory retains data even without power.

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Q:

Merge cells option can be applied from?

A) Format Cells dialog box Alignment Tab B) Formatting toolbar
C) Both of above D) None of above
 
Answer & Explanation Answer: A) Format Cells dialog box Alignment Tab

Explanation:

Merge_cells_option_can_be_applied_from1554444124.PNG image

 

Steps for merging cells :

1. Select which you want to merge

2. After selecting right click on that highlightened cells to get format cells option.

3. Click format cells to merge get merge option.

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Q:

The term _____ designates equipment that might be added to a computer system to enhance its functionality

A) digital device B) system add-on
C) disk pack D) peripheral device
 
Answer & Explanation Answer: D) peripheral device

Explanation:
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Q:

The smallest unit in a digital system is a.........

A) Bit B) Byte
C) Character D) Kilobyte
 
Answer & Explanation Answer: A) Bit

Explanation:
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Q:

Which of the following software applications would be the most appropriate for performing numerical and statistical calculations?

A) Database B) Document Processor
C) Graphic Package D) Spread Sheet
 
Answer & Explanation Answer: D) Spread Sheet

Explanation:
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Q:

To make the number pad act as a directional arrow, we press

A) Num lock B) Caps lock
C) Arrow lock D) Shift
 
Answer & Explanation Answer: D) Shift

Explanation:
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