XtraStudy Header

⁞ Computer

General Science ➤ Computer ➤ 1
Question 21
Q21.  Junk e-mail is also called ______.
 

Answer :  Spam


Junk e-mail is also called Spam.

Sending irrelevant messages or the same message to a large number of users over the internet for the purpose of advertisement or malicious intent is called as spamming and that content is called as SPAM or JUNK.
⚔ DISCUSS

Question 22
Q22.  A computer cannot "boot" if it does not have the _____ .
 

Answer :  Operating system


An operating system is the system software that handles the software and hardware resources and provides services for the computer programs. SO without an operating system, a computer cannot "boot".
⚔ DISCUSS

Question 23
Q23.  CD-ROM is a semiconductor memory.
 

Answer :  FALSE


"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.
⚔ DISCUSS

Question 24
Q24.  Which of the following is NOT an open-source operating system ?
 

Answer :  Windows


No Explanation Available. You may discuss in the comment box.
⚔ DISCUSS

Question 25
Q25.  Full form of BIOS is
 

Answer :  Basic Input Output System


No Explanation Available. You may discuss in the comment box.
⚔ DISCUSS

Comments
Comments (0)


XtraStudy
Explore
Explore
About
App Link
xtrastudy android app
Others

Earn While You Learn
FAQ

Register Now

© 2022 Company, Inc. All rights reserved.