Computer Questions

Q:

Which technology is used in compact disc or disks?

A) Laser B) Mechanical
C) Electrical D) Electro magnetic
 
Answer & Explanation Answer: A) Laser

Explanation:

                                    Which_technology_is_used_in_compact_disc_or_disks1538026052.jpg image

Compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982. 

These are actually made to replace floppy disks that were used to store files and programs from the computer.

 

The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM).ese CD's uses Laser technology.

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5 3970
Q:

What is the name for the process that is used to convert a series of instructions or programs, written in a high-level language into instructions(or a program) that can be run on a computer? 

A) Assembling B) Compiling
C) Translating D) Uploading
 
Answer & Explanation Answer: B) Compiling

Explanation:
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7 3939
Q:

What cannot be performed from the windows task manager?

A) Open a program B) Check recent CPU usage
C) Delete a program from the hard drive D) View what applications are running in the background
 
Answer & Explanation Answer: C) Delete a program from the hard drive

Explanation:

The task manager enables you to monitor processes, applications and services currently running on your computer. You can use it to start and stop programs and processes. In addition, you can use the task manager to show informative stats about your PC’s performance and network.

 


Hence, to delete a program from the hard drive, you have to go to the control panel to uninstall an application properly.

 

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6 3932
Q:

Hard disk is coated in both side with

A) Carbon layer B) Magnetic metallic oxide
C) Optical metallic oxide D) All of the above
 
Answer & Explanation Answer: B) Magnetic metallic oxide

Explanation:

Hard_disk_is_coated_in_both_side_with1551862660.jpg image

Hard disk is coated in both side with Magnetic metallic oxide.

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4 3920
Q:

In windows, start button is used to

A) Run applications B) Device setting
C) Turn off the system D) All of above
 
Answer & Explanation Answer: D) All of above

Explanation:

The Start button allows users to access their run applications, device setting, turn off the system, computer programs or configure Microsoft Windows easily by accessing the Start Menu.

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4 3915
Q:

Digitized information can be used by computers.

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

Explanation:

TRUE. The computers and electronic devices use digitized information which is easily understood by them.


 


Digitization is the process of converting analog signals or information of any form into a digital format that can be understood by computer systems or electronic devices. The term is used when converting information, like text, images or voices, and sounds, into binary code.

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6 3904
Q:

Which of the following refers to the fastest, biggest, and most expansive computer?

A) Personal computer B) Super computer
C) Laptop D) None of these
 
Answer & Explanation Answer: B) Super computer

Explanation:
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5 3889
Q:

Which standard govern parallel communications?

A) CAT 5 B) IEEE 1284
C) RS-232 D) None of the above
 
Answer & Explanation Answer: B) IEEE 1284

Explanation:

IEEE 1284 is a standard that govern parallel communications.

 

  • IEEE 1284 is a standard that defines bi-directional parallel communications between computers and other devices.

 

  • It was originally developed in the 1970s by Centronics, and was widely known as the Centronics port, both before and after its IEEE standardization.

 

                      which_standard_govern_parallel_communications1539064136.jpg image

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