11
Q:

CD-ROM is a semiconductor memory.

 

A) TRUE B) FALSE

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.

Subject: Computer
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

A _______ is a collection of letters, digits, punctuation characters, and so on.

A) Numbers B) String
C) Arrays D) Boolean Values
 
Answer & Explanation Answer: B) String

Explanation:
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Q:

Choose odd one out

A) Cyberspace B) Internet
C) HTML D) WWW
 
Answer & Explanation Answer: C) HTML

Explanation:
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Q:

C Programming language was developed by ___________.

A) Charles Babbage B) Larry Wall
C) James Gosling D) Dennis Ritchie
 
Answer & Explanation Answer: D) Dennis Ritchie

Explanation:
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Q:

An absolute ________ contains the complete address of a file on the Internet.

A) JavaScript B) URL
C) SQL D) String
 
Answer & Explanation Answer: B) URL

Explanation:
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Q:

In Microsoft Word, under character formatting ___________ is used to superscript and subscript.

A) Font style B) Underline
C) Effects D) Size
 
Answer & Explanation Answer: C) Effects

Explanation:
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2 54
Q:

Who Invented the computer mouse?

A) Gene Dolgoff B) Brendan Eich
C) Douglas Engelbart D) Federico Faggin
 
Answer & Explanation Answer: C) Douglas Engelbart

Explanation:
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Q:

_________ performs tasks such as inserting, updating, or deleting data occurrences.

A) Data definition language B) Data manipulation language
C) Query language D) OQL
 
Answer & Explanation Answer: B) Data manipulation language

Explanation:
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Q:

In Microsoft Word, under character formatting ___________ is used to apply colors to the characters.

A) Font style B) Font color
C) Effects D) Size
 
Answer & Explanation Answer: B) Font color

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