A computer is a device that can be instructed to carry out arbitrary sequences of arithmetic or logical operations automatically. The ability of computers to follow generalized sets of operations, called programs, enables them to perform an extremely wide range of tasks.
Such computers are used as control systems for a very wide variety of industrial and consumer devices. This includes simple special purpose devices like microwave ovens and remote controls, factory devices such as industrial robots and computer assisted design, but also in general purpose devices like personal computers and mobile devices such as smartphones. The Internet is run on computers and it connects millions of other computers.Conventionally, a modern computer consists of at least one processing element, typically a central processing unit (CPU), and some form of memory.Computer an electronic device that stores and manipulates information. Unlike a calculator, it is able to store a program and retrieve information from its memory. Most computers today are digital, which means they perform operations with quantities represented electronically as digits. that accepts information, And that can solve different problems.Just follow the Mcqs online quiz being dispatched over here with respect to your preparation for entry admission test NTS PPSC OTS PTS and missllenous job exams simultaneously.
Here we have large collection of Computer Mcqs for all Students and jobs test preparation purpose. These Computer Mcqs will be updated on daily basis and added more multiple choice question about Computer frequently.You can prepare your Computer Subject for different classes like 9th class, 10th class ,11th class 12th class exams, Entry Test like MCAT NTS ,OTS ,PTS ,BTS, GTS, Jobs Test,Recruitment Test like PPSC CSS FPSC SPSC KPPSC and interviews here.
Computer Mcqs Online With Answers for NTS PPSC Entry Test Classes
A. Arithmetic operation
B. Logical operation
C. Storage and relative
D. All the above
Right Answer: All the above
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Which of the following devices can be sued to directly image printed text?
A. OCR
B. OMR
C. MICR
D. All of above
Right Answer: OCR
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_________ is called the father of modern digital computer?
A. Leibnitz
B. Blaise Pascal
C. Charles Babbage
D. J.H Muller
Right Answer: Charles Babbage
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4
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An error in software or hardware is called a bug. What is the alternative computer jargon for it?
A. Leech
B. Squid
C. Slug
D. Glitch
Right Answer: Glitch
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Which device is required for the Internet connection?
A. Joystick
B. Modem
C. CD Drive
D. NIC Card
Right Answer: Modem
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The first computers were programmed using?
A. Assembly language
B. Machine language
C. Source code
D. Object code
Right Answer: Machine language
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A(n)_____________is a set of programs designed to manage the resources of a computer, including starting the computer, managing programs, managing memory and coordinating tasks between input and output devices?
A. application suite
B.compiler
C. input/output system
D. Operating system
Right Answer: Operating system
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4
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When entering text within a document, the Enter key is normally pressed at the end of every?
A. Line
B. Sentence
C. Paragraph
D. Word
E. None of these
Right Answer: Paragraph
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One of the popular mass storage device is CD ROM. What does CD ROM stand for?
A. Compactable Read Only Memory
B. Compact Data Read Only Memory
C. Compactable Disk Read Only Memory
D. Compact Disk Read Only Memory
Right Answer: Compact Disk Read Only Memory
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An intentionally disruptive program that spreads from program to program or from disk to disk is known as a?
A. Trojan horse.
B. Virus.
C. Time bomb.
D. Time-related bomb sequence.
Right Answer: Virus.
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Which of the following contains permanent data and gets updated during the processing of transactions?
A. Operating System File
B. Transaction file
C. Software File
D. Master file
Right Answer: Master file
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What do you call the programs that are used to find out possible faults and their causes?
A. operating system extensions
B. cookies
C. diagnostic software
D. boot diskettes
Right Answer: diagnostic software
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C’ in CPU denotes?
A. Central
B. Common
C. Convenient
D. Computer
Right Answer: Central
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A light sensitive device that converts drawing, printed text or other images into digital form is?
A. Keyboard
B. Scanner
C. OMR
D. None of these
Right Answer: Scanner
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In which type of computer, data are represented as discrete signals?
A. Analog computer
B. Digital computer
C. both
D. Hybrid Computer
Right Answer: Digital computer
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Serial access memories are useful in applications where?
A. Data consists of numbers
B. Short access time is required
C. Each stored word is processed differently
D. Data naturally needs to flow in and out in serial form
Right Answer: Data naturally needs to flow in and out in serial form
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What does DMA stand for?
A. Distinct Memory Access
B. Direct Memory Access
C. Direct Module Access
D. Direct Memory Allocation
Right Answer: Direct Memory Access
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The scrambling of code is known as?
A. Encryption
B. a firewall
C. Scrambling
D. Password proofing
Right Answer: Encryption
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Identify the true statement about computer?
A. Computers are 100% accurate but it can suffer from GIGO (Garbage In Garbage Out)
B. Computers are reliable because they use electronic component which have very low failure rate
C. Computer is never tired and does not suffer from boredom
D. All of above
Right Answer: All of above
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physical structure of computer is called?
A. Software
B. Hardware
C. Human ware
D. All of these
Right Answer: Hardware
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Which of the following memories must be refreshed many times per second?
A. Static RAM
B. Dynamic RAM
C. EPROM
D. ROM
Right Answer: Dynamic RAM
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RAM can be treated as the____________for the computer’s processor?
A. factory
B. operating room
C. waiting room
D. planning room
Right Answer: waiting room
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A________________is an additional set of commands that the computer displays after you make a selection from the main menu?
A. dialog box
B. submenu
C. menu selection
D. All of the above
Right Answer: dialog box
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Unwanted repetitious messages, such as unsolicited bulk e-mail is known as?
A. Spam
B. Trash
C. Calibri
D. Courier
Right Answer: Spam
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The system unit of a personal computer typically contains all of the following except?
A. Microprocessor
B. Disk controller
C. Serial interface
D. Modem
Right Answer: Modem
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Memory unit is one part of?
A. Input device
B. Control unit
C. Output device
D. Central Processing Unit
Right Answer: Central Processing Unit
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ALU is?
A. Arithmetic Logic Unit
B. Array Logic Unit
C. Application Logic Unit
D. None of above
Right Answer: Arithmetic Logic Unit
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Father of “C‘ programming language?
A. Dennis Ritchie
B. Prof John Keenly
C. Thomas Kurtz
D. Bill Gates
Right Answer: Dennis Ritchie
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3
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which one is Digital device, select from the choices below?
A.Digital Clock
B.Automobile speed meter
C.Clock with a dial and two hands
D.All of them
Right Answer: Digital Clock
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1 Gigabyte is equal to?
A. 1024 bits
B. 1000 megabytes
C. 1024 kilobytes
D. 1024 megabytes
Right Answer: 1024 megabytes
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Personal computers use a number of chips mounted on a main circuit board. What is the common name for such boards?
A. Daughter board
B. Motherboard
C. Father board
D. Breadboard
Right Answer: Motherboard
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Which of the following uses a handheld operating system?
A. supercomputer
B. personal computer
C. Laptop
D. PDA
Right Answer: PDA
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In world today, most of the computers are?
A. Digital
B. Hybrid
C. Analog
D. Complex
Right Answer: Digital
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1
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Why is it unethical to share copyrighted files with your friends?
A. It is not unethical, because it is legal.
B. It is unethical because the files are being given for free.
C. Sharing copyrighted files without permission breaks copyright laws.
D. It is not unethical because the files are being given for free.
Right Answer: Sharing copyrighted files without permission breaks copyright laws.
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Personnel who design, program, operate and maintain computer equipment refers to?
A. Console-operator
B. Programmer
C. Peopleware
D. System Analyst
Right Answer: Peopleware
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A detailed written description of the programming cycle and the program, along with the test results and a printout of the program is called?
A. documentation
B. output
C. reporting
D. spec sheets
Right Answer: documentation
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The thing that eventually terminates a worm virus is a lack of?
A. Memory or disk space.
B. Time.
C. CD drives space.
D. CD-RW.
Right Answer: Memory or disk space.
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The device used to carry digital data on analogue lines is called as?
A. Modem
B. Multiplexer
C. Modulator
D. Demodulator
Right Answer: Modem
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The computer abbreviation KB usually means?
A. Key Block
B. Kernel Boot
C. Kilo Byte
D. Kit Bit
Right Answer: Kilo Byte
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Computers, combine both measuring and counting, are called?
A. Analog
B. Digital
C. Hybrid
D. All of these
Right Answer: Hybrid
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Microprocessors as switching devices are for ___________generation computers?
A. First Generation
B. Second Generation
C. Third Generation
D. Fourth Generation
Right Answer: Fourth Generation
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Forms that are used to organize business data into rows and coloumns are called?
A. transaction sheets
B. registers
C. business forms
D. spread sheets
Right Answer: spread sheets
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“MAN” stands for?
A. Maximum Area Network
B. Minimum Area Network
C. Main Area Network
D. Metropolitan Area Network
Right Answer: Metropolitan Area Network
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ASCII stands for?
A. American Stable Code for International Interchange
B. American Standard Case for Institutional Interchange
C. American Standard Code for Information Interchange
D. American Standard Code for Interchange Information
Right Answer: American Standard Code for Information Interchange
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What is the other name for programmed chip?
A. RAM
B. ROM
C. LSIC
D. PROM
Right Answer: LSIC
Total 1 Votes:
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1
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Which of the following software could assist someone who cannot use their hands for computer input?
A. Video conferencing
B. Speech recognition
C. Audio digitizer
D. Synthesizer
Right Answer: Speech recognition
Total 2 Votes:
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2
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Which of the following is not a binary number?
A. 001
B. 101
C. 202
D. 110
Right Answer: 202
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2
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CSS stands for?
A. Central Superior Services
B. Cascading style sheets
C. Both
D. None of above
Right Answer: Cascading style sheets
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2
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Which of the following is a network topology?
A. LAN
B. WAN
C. MAN
D. BUS
Right Answer: BUS
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2
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Process of loading and fixing or bypassing errors in computer program code is called?
A. Debugging
B. Defusing
C. Defragmenting
D. Defrosting
Right Answer: Debugging
Total 1 Votes:
1
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Which part of the computer is directly involved in executing the instructions of the computer program?
A. The scanner
B. The main storage
C. The secondary storage
D. The processor
Right Answer: The processor
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__________represents raw facts, where-as__________is data made meaningful?
A. Information, reporting
B. Data, information
C. Information, bits
D. Records, bytes
Right Answer: Data, information
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The term___________designates equipment that might be added to a computer system to enhance its functionality?
A. digital device
B. system add-on
C. disk pack
D. peripheral device
Right Answer: peripheral device
Total 3 Votes:
1
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Which of the following does not store data permanently?
A. ROM
B. RAM
C. Floppy Disk
D. Hard Disk
Right Answer: RAM
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All of the following are examples of storage devices EXCEPT?
A. hard disk drives
B. printers
C. floppy disk drives
D. CD drives
Right Answer: printers
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The computer that process both analog and digital is called?
Coded entries which are used to gain access to a computer system are called?
A. Entry codes
B. Passwords
C. Security commands
D. Code words
Right Answer: Passwords
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The programs which are as permanent as hardware and stored in ROM is known as?
A. Hardware
B. Software
C. Firmware
D. ROM ware
Right Answer: Firmware
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____________computer is small general purpose micro computer, but larger than portable computer?
A. Hybrid
B. Digital
C. Desktop
D. Laptop
Right Answer: Desktop
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WAN stands for?
A. Wap Area Network
B. Wide Area Network
C. Wide Array Net
D. Wireless Area Network
Right Answer: Wide Area Network
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2
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______________is the science that attempts to produce machines that display the same type of intelligence that humans do?
A. Nanoscience
B. Nanotechnology
C. Simulation
D. Artificial intelligence (Al)
Right Answer: Artificial intelligence (Al)
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The first electronic computer was developed by?
A. J.V. Attansoff
B. Bill Gates
C. Simur Cray
D. Winton Serf
Right Answer: J.V. Attansoff
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What is meant by a dedicated computer?
A. Which is used by one person only
B. Which is assigned one and only one task
C. Which uses one kind of software
D. Which is meant for application software
Right Answer: Which is assigned one and only one task
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The software that is used to create text-based documents are referred to as?
A. DBMS
B. Suites
C. Spreadsheets
D. Word processors
Right Answer: Word processors
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1
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Chief component of first generation computer was?
A. Transistors
B. Vacuum Tubes and Valves
C. Integrated Circuits
D. None of above
Right Answer: Vacuum Tubes and Valves
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MICR stands for?
A. Magnetic Ink Character Reader
B. Magnetic Ink Code Reader
C. Magnetic Ink Cases Reader
D. None
Right Answer: Magnetic Ink Character Reader
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_________________provides process and memory management services that allow two or more tasks, jobs, or programs to run simultaneously?
A. Multitasking
B. Multithreading
C. Multiprocessing
D. Multicomputing
Right Answer: Multitasking
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___________is the key we use to run the selected command?
A. SHIFT
B. TAB
C. ENTER
D. CTRL
Right Answer: ENTER
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____________Is the functional key to display save-as box?
A. F5
B. F6
C. F9
D. F12
Right Answer: F12
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2
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WWW stands for?
A. World Whole Web
B. Wide World Web
C. Web World Wide
D. World Wide Web
Right Answer: World Wide Web
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BIOS stands for?
A. Basic Input Output system
B. Binary Input output system
C. Basic Input Off system
D. all the above
Right Answer: Basic Input Output system
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The common name for the crime of stealing passwords is?
A. Jacking.
B. Identity theft.
C. Spoofing.
D. Hacking.
Right Answer: Spoofing.
Total 4 Votes:
1
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What kind of memory is both static and non -volatile?
A. RAM
B. ROM
C. BIOS
D. CACHE
Right Answer: ROM
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If a computer has more than one processor then it is known as?
A. Uni-process
B. Multiprocessor
C. Multi-threaded
D. Multi-programming
Right Answer: Multiprocessor
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1
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Which technology is used in compact disks?
A. Mechanical
B. Electrical
C. Electro Magnetic
D. Laser
Right Answer: Laser
Total 3 Votes:
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3
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The brain of any computer system is?
A. ALU
B. Memory
C. CPU
D. Control unit
Right Answer: CPU
Total 1 Votes:
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1
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What computer virus holds the record for being the most widespread computer virus?
A. I Love You
B. Nimdad
C. Melissa
D. Christmas
Right Answer: I Love You
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2
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_______________is the ability of a device to “jump” directly to the requested data?
A. Sequential access
B. Random access
C. Quick access
D. All of the above
Right Answer: Random access
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In_______________mode, the communication channel is used in both directions at the same time?
A. Full-duplex
B. Simplex
C. Half-duplex
D. None of the above
Right Answer: Full-duplex
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_____________are used to identify a user who returns to a Website?
A. Cookies
B. Plug-ins
C. Scripts
D. ASPs
Right Answer: Cookies
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What is the overall term for creating editing, formatting, storing, retrieving and printing a text document?
A. Word processing
B. Spreadsheet design
C. Web design
D. Database management
Right Answer: Word processing
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Which of the following are the functions of a operating system?
A. Allocates resources
B. Monitors Activities
C. Manages disks and files
D. All of the above
Right Answer: All of the above
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Who is the father of Computer science?
A. Allen Turing
B. Charles Babbage
C. Simur Cray
D. Augusta Adaming
Right Answer: Allen Turing
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The most common type of storage devices are?
A. Steel
B. optical
C. magnetic
D. flash
Right Answer: optical
Total 2 Votes:
0
2
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The_____________data mining technique derives rules from real-world case examples?
A. Rule discover
B. Signal processing
C. Neural nets
D. Case-based reasoning
Right Answer: Neural nets
Total 3 Votes:
1
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What type of virus uses computer hosts to reproduce itself?
A. Time bomb
B. Worm
C. Melissa virus
D. Macro virus
Right Answer: Worm
Total 1 Votes:
0
1
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A ____________is a microprocessor -based computing device?
A. personal computer
B. mainframe
C. workstation
D. server
Right Answer: personal computer
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To access properties of an object, the mouse technique to use is?
A. Dragging
B. dropping
C. right-clicking
D. shift-clicking
Right Answer: right-clicking
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Example of non-numeric data is?
A. Employee address
B. Examination score
C. Bank balance
D. All of these
Right Answer: Employee address
Total 2 Votes:
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2
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Which of the following is a secondary memory device?
A. Keyboard
B. Disk
C. ALU
D. All of the above
Right Answer: Disk
Total 0 Votes:
0
0
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Which programming languages are classified as low level languages?
A. BASIC, COBOL, Fortran
B. Prolog
C. C, C++
D. Assembly languages
Right Answer: Assembly languages
Total 4 Votes:
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4
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A DVD is an example of a (n)?
A. hard disk
B. optical disc
C. output device
D. solid-state storage device
Right Answer: optical disc
Total 0 Votes:
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A collection of system programs that controls and co-ordinates the overall operations of a computer system is called?
A. System software
B. Operating system
C. Utility program
D. Device driver
Right Answer: Operating system
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____________is the measurement of things such as fingerprints and retinal scans used for security access?
A. Biometrics
B. Bio measurement
C. Computer security
D. Smart weapon machinery
Right Answer: Biometrics
Total 3 Votes:
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Which of these is not a means of personal communication on the internet?
A. Chat
B. Instant messaging
C. Insta notes
D. Electronic mail
Right Answer: Insta notes
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In analogue computer?
A. Input is first converted to digital form
B. Input is never converted to digital form
C. Output is displayed in digital form
D. All of above
Right Answer: Input is never converted to digital form
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To display the contents of a folder in Windows Explorer you should?
A. click on it
B. collapse it
C. name it
D. give it a password
Right Answer: click on it
Total 3 Votes:
1
2
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What is the most common tool used to restrict access to a computer system?
A. User logins
B. Passwords
C. Computer keys
D. Access-control software
Right Answer: Passwords
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0
1
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Modern Computer are very reliable but they are not?
A. Fast
B. Powerful
C. Infallible
D. Cheap
Right Answer: Infallible
Total 2 Votes:
2
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Analog computer works on the supply of?
A.Continuous electrical pulses
B.Electrical pulses but not continuous
C.Magnetic strength
D.None of the above
Right Answer: Continuous electrical pulses
Total 1 Votes:
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