Computer Questions

Q:

Which of the following is a secondary storage device?

A) ALU B) Disc
C) Projector D) All of the above
 
Answer & Explanation Answer: B) Disc

Explanation:
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Q:

Autocorrect was originally designed to replace

A) Misspelled words B) Grammatically incorrect
C) Repetitive words D) All of the above
 
Answer & Explanation Answer: A) Misspelled words

Explanation:

autocorrect_was_originally_designed_to_replace1561613833.jpg image

 

Autocorrect was originally designed to replace Misspelled words. Its purpose is as part of the spell checker to correct common spelling or typing errors, saving time for the user. It is commonly found in word processors and text editing interfaces for smartphones, computers, etc.

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Q:

A UPS connects your computer and a power source.

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

Explanation:

A UPS (Uninterruptible Power Supply) is a device that provides battery backup when the electrical power fails or drops to an unacceptable voltage level.


Related image


Small UPS systems provide power for a few minutes; enough to power down the computer in an orderly manner, while larger systems have enough battery for several hours.

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Q:

Which memory is nonvolatile?

A) Floppy discs B) Magnetic tape
C) ROM D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

A computer has two types of memory.

1. Non-volatile and

2. Volatile.

 

Volatile memory is computer memory that requires power to maintain the stored information.

* It is a temporary memeory which cannot contain information permanently.

Example :: RAM or Random Access Memory

 

Non-volatile memory is computer memory that can retain the stored information even when not powered.

* It is a permanent memory in which data is stored in permanently.

Examples :: Hard disc, ROM, Floppy discs, Magnetic tape,...

 

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Q:

UNIVAC is

A) Universal Automatic Computer B) Universal Array Computer
C) Unvalued Automatic Computer D) Unique Automatic Computer
 
Answer & Explanation Answer: A) Universal Automatic Computer

Explanation:
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Q:

The two broad categories of software are

A) Drivers and MS office B) Application and Spreadsheets
C) System and Application D) Utility programs and System
 
Answer & Explanation Answer: C) System and Application

Explanation:

The two broad categories of software in a computer are

1. System software
2. Application software

 

the_two_broad_categories_of_software_are1560849803.jpg image

System software controls how the system works and enables user to access all of the system hardware and application software

The OS, utility programs and drivers come under system software.

 

Application software are software used by the user to perform specific task. They are installed according to the user's requirements.

The word processor, web browser, players, spreadsheets etc... come under this application software.

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Q:

Processing speed of computer is measured in MIPS.

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

Explanation:

Million Instructions Per Second is a method of measuring the raw speed of a computer's processor. MIPS measures roughly the number of machine instructions that a computer can execute in one second.

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Q:

Which memory needs refresh?

A) DRAM B) SRAM
C) ROM D) All of the above
 
Answer & Explanation Answer: A) DRAM

Explanation:

Memory refresh is the process of periodically reading information from an area of computer memory and immediately rewriting the read information to the same area without modification, for the purpose of preserving the information.

DRAM1532669979.png image

Memory refresh is a background maintenance process required during the operation of semiconductor dynamic random-access memory (DRAM), the most widely used type of computer memory.

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