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Important Computer MCQs for FPSC, PCS, NTS, OTS & All Competitive Exams

March 7, 2019
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Important Computer MCQs for FPSC Competitive exams
Written by Shahzad F. Malik

Important Computer MCQs
for FPSC, PCS, NTS, OTS & All Competitive Exams

Question: What is a computer?
Answer: A computer is an electronic device. It obeys our instructions. We can store data into it and can get stored data from it when we need.

Question: What is ABACUS?
Answer: ABACUS is the name of first calculating device, which was introduced by Chinese about 3000 B.C. This device is made of wooden box with rods inside.

Question: Who is the Father of the Computer?
Answer: Charles Babbage is the father of the computer.

Question: Which was the first digital computer?
Answer: The first digital computer was MARK-I.

Question: Write the second name of the Main frame Computer?
Answer: Macro computer is the second name of the mainframe computer.

Question: Write any example of Digital computer.
Answer: Digital watch, computer, and computer equipments are the examples of digital computer.

Question: Write any example of Analog computer.
Answer: Thermometer, Wight machine and speed meter are the examples of analog computer.

Question: What is Hardware?
Answer: Physical components of a computer are called Hardware.

Question: Write any three hardware components of a computer.
Answer: 1. Keyboard 2. Motherboard 3. Monitor

Question: What is meant by input?
Answer: Word input meAnswer to enter something into any thing.

Question: Write names of any three input devices of the computer?
Answer: 1. Keyboard 2. Joystick 3. Mouse

Question: Write names of any three output device.
Answer: 1. Monitor 2. Printer 3. Plotter

Question: What is CPU?
Answer: CPU stands for Central processing Unit and this portion of computer is called brain of the computer.

Question: What is ALU?
Answer: ALU stands for Arithmetic and Logical Unit. This unit of the CPU is capable of performing arithmetic and logical operations.

Question: What is Memory Unit?
Answer: In the memory unit of the computer data can be stored to use again and again and it is physical unit of the computer.

Check Also: Computer MCQs for all type of one paper tests

Question: Which is the volatile memory of the computer?
Answer: RAM is the volatile memory of the computer.

Question: Which is the non-volatile memory of the computer?
Answer: ROM is the non-volatile memory of the computer because we cannot change its contents.

Question: What are the peripheral devices of the computer?
Answer: The devices, which are connected to a computer, are called peripheral devices like keyboard, monitor and mouse.

Question: What is an algorithm?
Answer: A computer cannot solve any problem itself. “An algorithm is a set of instructions that are used to solve a problem.

Question: Write down the steps to solve a problem.
Answer: There are six steps to solve a problem.
1. Define the problem
2. Algorithm
3. Flow charting
4. Coding
5. Testing and debugging
6. Documentation

Question: What is meant by debugging?
Answer: Debugging is the process of removing errors from a program.

Question: What is a bug?
Answer: In terms of computer an error of a program is called a bug.

Question: What is documentation?
Answer: Documentation is the explanation of a program. It describes how a program works.

Question: Write names of backing storage devices.
Answer: Floppy disk, Hard disk, Magnetic Tape Disk, Compact Disk (CD).

Question: Write the name of primary storage of the computer.
Answer: RAM and ROM are called primary storage of the computer.

Question: Write names of the secondary devices of the computer.
Answer: Hard disk, floppy disk and compact disks are secondary storage devices of the computer.

Question: What is the second name of secondary storage devices?
Answer: Secondary storage devices are also called backing storage devices.

Question: What is the measurement unit of the computer memory?
Answer: Byte is the measurement unit of the computer memory.

Check also: Computer Network MCQs & Data Communication MCQs

Question: How much data can be stored in a floppy disk?
Answer: We can store maximum 1.44 MB data in a floppy disk.

Question: In how many sizes a floppy disk is available?
Answer: A floppy disk is available in two sizes that is 4.5 and 5.25 inches.

Question: What is a byte?
Answer: A byte is the measurement unit of the computer memory and it consists of 8 bits.

Question: What is a bit?
Answer: A bit is the smallest unit of the computer memory.

Question: Which command is used to check errors from a disk?
Answer: CHKDSK command is used to check errors of a disk.

Question: How will you make a disk useable?
Answer: To make a disk useable, it is formatted by using FORMAT command of DOS.

Question: BASIC stands for.
Answer: Beginners All purpose Symbolic Instruction Code.

Question: What is data?
Answer: Collection of facts and figures is called data.

Question: What is information?
Answer: Processed form of data or organized form of data is called information.

Question: Who invented BASIC language?
Answer: Dr. John, G. Kemney and Dr. Thomas E. Kurtz.

Question: What is the purpose of REM command in BASIC language?
Answer: This command is used to make a statement non-executable and is helpful for documentation of a program.

Question: What is maximum length of a variable in BASIC language?
Answer: The maximum length of a variable in BASIC is 40 characters.

Question: What is a variable?
Answer: The quantity which does not remain fix.

Question: What is a constant?
Answer: The quantity, which remains fix and cannot be changed, is called constant.

Question: How many types of a variable in BASIC language?
Answer: There are two types of variables in BASIC language.

Question: Write the names of variable types.
Answer: 1. Numeric variable 2. String variable

Question: How will you make a variable string?
Answer: To make a variable string variable place $ sign after the name of the variable.

Question: What is the maximum length of a string variable?
Answer: 255 characters.

Question: What is the base of hex-decimal numbers?
Answer: 16

Question: What is the purpose of TRON in basic language?
Answer: TRON displays line number during execution of the program.

Question: What is a loop?
Answer: Repetition of program statements is called a loop.

Question: Write names of some famous high-level languages.
Answer: Some common high-level languages are:
1. FORTRAN
2. PASCAL, PEARL
3. BASIC , PH.P
4. JAVA
5. C++

Question: How many parts of computer?
Answer: There four parts of computer:
1. Monitor / LCD / LED
2. Keyboard
3. C.P.U
4. Mouse

Check Other MCQs for all type of competitive exams

About the author

Shahzad F. Malik

Shahzad Faisal Malik is the administrator of CSSTimes.pk and is responsible for managing the content, design, and overall direction of the blog. He has a strong background in Competitive Exams and is passionate and sharing information with others.
Shahzad Faisal Malik has worked as a Graphic Designer/Content Creator at CSSTimes in the past. In his free time, Shahzad Faisal Malik enjoys watching Cricket, writing blogs for different websites and is always on the lookout for new and interesting content to share with the readers of this website.
As the website administrator, Shahzad Faisal Malik is dedicated to providing high-quality content and fostering a welcoming and engaging community for readers. He looks forward to connecting with readers and hearing their thoughts and feedback on the website.

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