7
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
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Q:

Every component of your computer is either

A) Hardware or CPU B) RAM/CPU or Hardware
C) Hardware or Software D) System or Application software
 
Answer & Explanation Answer: C) Hardware or Software

Explanation:

All the computers have components that are either Hardware or Software.

The five major components of computers are :

-> Input Unit

-> Output Unit

-> CPU Unit

-> ALU Unit and

-> Control Unit.

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5 111
Q:

Magnetic Tape can serve as

A) Input device B) Secondary storage device
C) Output device D) None of the above
 
Answer & Explanation Answer: B) Secondary storage device

Explanation:

Related image

Magnetic tape can serve as a Secondary storage unit. It is a medium for magnetic recording, made of a thin, magnetizable coating on a long, narrow strip of plastic film.

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8 270
Q:

The digital computer was developed primarily in

A) USA B) UK
C) Russia D) Japan
 
Answer & Explanation Answer: A) USA

Explanation:

A digital computer accepts, processes and outputs data in digitized forms. The digital computer was developed primarily in Unites States of America.

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Q:

A source program is

A) a program to be translated into machine language B) a program written in a machine language
C) a machine language translation of a program D) All of the above
 
Answer & Explanation Answer: A) a program to be translated into machine language

Explanation:

A_source_program_is1563521242.png image

A source program is is a text file that contains instructions or a program written in a language other than machine code, typically a high-level language.

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6 297
Q:

A hard copy of a document is

A) stored in a pen drive B) read in floppy disc
C) printed on printer D) stored in hard disc
 
Answer & Explanation Answer: C) printed on printer

Explanation:

A hard copy of a document is a physical object which is printed on printer.

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Q:

Hard Drive capacity is measured in

A) Newton B) GB
C) THz D) Gwallior
 
Answer & Explanation Answer: B) GB

Explanation:

Hard drive or disc is used to store the users information and its capacity is measured in Giga Bytes (GB) and Tera Bytes (TB).

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5 356
Q:

What symbol is used to enter number as text?

A) = B) "
C) ' D) _
 
Answer & Explanation Answer: C) '

Explanation:

Apostrophe(‘) symbol is used before a number to make it a text or label.

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6 369
Q:

F12 key is known as

A) Company Configuration B) Accounting Features
C) Company Features D) All of the above
 
Answer & Explanation Answer: A) Company Configuration

Explanation:

The F1, F2 to F12 keys that are found on the top row of most computer keyboards are called as Function Keys. Unless you've witnessed the evolution of computers from their early days, you probably don't know why they were invented and for what.
Function keys were used by various computer programs to fulfill various functions.

F12 - It is used by many web browsers to open the developer tools.

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