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
Computer
Computer Mcqs with Answers online
When creating a computer program, the____________designs the structure of the program?
A. End user
B. System Analyst
C. Programmer
D. All of the above
Right Answer: System Analyst
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The output quality of a printer is measured by?
A. Dot per inch
B. Dot per sq. inch
C. Dots printed per unit time
D. All of above
Right Answer: Dot per sq. inch
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which statement describe “Hackers”?
A. all have the same motive
B. break into other people’s computers
C. may legally break into computers as long as they do not do any damage
D. are people who are allergic to computers
Right Answer: break into other people’s computers
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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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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 process of transferring files from a computer on the Internet to your computer is called?
A. Downloading
B. uploading
C. FTP
D. JPEG
Right Answer: Downloading
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Microprocessors can be used to make?
A. Computer
B. Digital systems
C. Calculators
D. All of the above
Right Answer: All of the above
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In power point, the header and footer button can be found on the insert tab in what group?
A. Illustrations group
B. Object group
C. Text group
D. Tables group
Right Answer: Text group
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First page of Website is termed as?
A. Homepage
B. Index
C. JAVA script
D. Bookmark
Right Answer: Homepage
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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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The primary function of the__________is to set up the hardware and load and start an operating system?
A. System Programs
B. BIOS
C. CP
D. Memory
Right Answer: BIOS
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Which of the following statements is true about Minicomputer and Microcomputer?
A. Minicomputer works faster than Microcomputer
B. Microcomputer works faster than Minicomputer
C. Speed of both the computers is the same
D. The speeds of both these computers cannot be compared with the speed of advanced
Right Answer: Minicomputer works faster than Microcomputer
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Memory is made up of?
A. Set of wires
B. Set of circuits
C. Large number of cells
D. All of these
Right Answer: Large number of cells
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_________computer are of large size?
A. Micro
B. Mainframe
C. Super
D. Mini
Right Answer: Mainframe
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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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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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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
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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 is the most powerful computers?
A. Mainframe Computer
B. Mini Computers
C. Micro Computers
D. Super Computers
Right Answer: Super Computers
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TCP/IP invented by?
A. Robert E. Kahn
B. Vint Cerf
C. Alan turing
D. A & B
Right Answer: A & B
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_______________devices convert human understandable data and programs into a form that the computer can process?
A. Printing
B. Output
C. Solid state
D. Input
Right Answer: Input
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Who invented the high level language “C”?
A. Dennis M. Ritchie
B. Niklaus Writh
C. Seymour Papert
D. Donald Kunth
Right Answer: Dennis M. Ritchie
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Magnetic disk is an example of?
A. Secondary memory
B. Primary memory
C. Main memory
D. Both (1) and (2)
Right Answer: Secondary memory
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Who is the father of Internet ?
A. Chares Babbage
B. Vint Cerf
C. Denis Riche
D. Martin Cooper
Right Answer: Vint Cerf
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DOS stands for?
A. Disk Operating System
B. Disk operating session
C. Digital Operating System
D. Digital Open system
Right Answer: Disk Operating System
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A modem is connected to?
A. a telephone line
B. a keyboard
C. a printer
D. a monitor
Right Answer: a telephone line
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_______________are system software to facilitate editing of text and data?
A. MS Word
B. Editors
C. PowerPoint
D. MS publisher
Right Answer: Editors
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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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____________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
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The amount of vertical space between lines of text in a document is called?
A. double-space
B. line spacing
C. single space
D. vertical spacing
Right Answer: line spacing
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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
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COBOL is an acronym for?
A. Common Business Oriented Language
B. Computer Business Oriented Language
C. Common Business Operated Language
D. Common Business Organized Language
Right Answer: Common Business Oriented Language
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C’ in CPU denotes?
A. Central
B. Common
C. Convenient
D. Computer
Right Answer: Central
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Hardware or software designed to guard against unauthorized access to a computer network is known as a(n)?
A. Hacker-proof program
B. Firewall
C. Hacker-resistant server
D. Encryption safe wall
Right Answer: Firewall
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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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An area of a computer that temporarily holds data waiting to be processed is?
A. CPU
B. Memory
C. Storage
D. File
Right Answer: Memory
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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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Which of the following is also known as brain of computer?
A. Control unit
B. Central Processing unit
C. Arithmetic and language unit
D. Monitor
Right Answer: Central Processing unit
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A program that performs a useful task while simultaneously allowing destructive acts is a?
A. Worm.
B. Trojan horse.
C. Virus.
D. Macro virus
Right Answer: Trojan horse.
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Cathode Ray Tube is a form of?
A. Keyboard
B. Mouse
C. Monitor
D. Mother board
Right Answer: Monitor
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When a file is saved for the first time?
A. a copy is automatically printed
B. it must be given a name to identify it
C. it does not need a name
D. it only needs a name if it is not going to be printed
Right Answer: it must be given a name to identify it
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A computer program that converts an entire program into machine language is called a/an?
A. Interpreter
B. Simulator
C. Compiler
D. Commander
Right Answer: Compiler
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Reusable optical storage will typically have the acronym?
A. CD
B. DVD
C. ROM
D. RW
Right Answer: RW
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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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Which of the printers used in conjunction with computers uses dry ink powder?
A. Daisy wheel printer
B. Line printer
C. Laser printer
D. Thermal printer
Right Answer: Laser printer
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Who is the Current CEO of Microsoft?
A. Babbage
B. Bill Gates
C. Bill Clinton
D. Satya Nadella
Right Answer: Satya Nadella
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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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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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Which of the following is a part of the Central Processing Unit?
A. Printer
B. Key board
C. Mouse
D. Arithmetic & Logic unit
Right Answer: Arithmetic & Logic unit
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A fault in a computer program which prevents it from working correctly is known as?
A. Boot
B. Bug
C. Biff
D. Strap
Right Answer: Bug
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Who designed the first electronics computer – ENIAC?
A. Van-Neumann
B. Joseph M. Jacquard
C. J. Presper Eckert and John W Mauchly
D. All of above
Right Answer: J. Presper Eckert and John W Mauchly
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You can organize files by storing them in?
A. archives
B. folders
C. indexes
D. lists
Right Answer: folders
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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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Select the Odd one from the following?
A. Operating system
B. Interpreter
C. Compiler
D. Assembler
Right Answer: Operating system
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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
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Which statement is valid about computer program?
A. High level languages must be converted into machine language to execute
B. High level language programs are more efficient and faster to execute
C. It is more difficult to identify errors in high level language program than in low level programs
D. All of above
Right Answer: High level languages must be converted into machine language to execute
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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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RAM is an example of?
A. Secondary memory
B. Primary memory
C. Main memory
D. Both (1) and (2)
Right Answer: Primary memory
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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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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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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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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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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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The CPU and memory are located on the?
A. expansion board
B. motherboard
C. storage device
D. output device
Right Answer: motherboard
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VOIP stands for?
A. Voice over IP
B. Video over IP
C. Viruses over IP
D. Virtual over IP
Right Answer: Voice over IP
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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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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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When a logic bomb is activated by a time-related event, it is known as a?
A. Time-related bomb sequence.
B. Virus.
C. Time bomb.
D. Trojan horse.
Right Answer: Time bomb.
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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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The computer size was very large in?
a. First Generation
b. Second Generation
c. Third Generation
d. Fourth Generation
Right Answer: First Generation
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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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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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The instructions that tell a computer how to carry out the processing tasks are referred to as computer?
A. programs
B. processors
C. input devices
D. memory modules
Right Answer: programs
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The CPU comprises of Control, Memory and_______________units?
A. Microprocessor
B. Arithmetic/Logic
C. Output
D. ROM
Right Answer: Arithmetic/Logic
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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
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In latest generation computers, the instructions are executed?
A. Parallel only
B. Sequentially only
C. Both sequentially and parallel
D. All of above
Right Answer: Both sequentially and parallel
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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.
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___________refers to electronic trespassing or criminal hacking?
A. Cracking
B. Jacking
C. Spoofing
D. Smarming
Right Answer: Cracking
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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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Which of the following is not a storage medium?
A. Hard disk
B. Flash drive
C. DVD
D. scanner
Right Answer: scanner
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To prevent the loss of data during power failures, use a(n)?
A. Encryption program
B. Surge protector
C. Firewall
D. UPS
Right Answer: UPS
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EBCDIC stands for?
A. Extended Binary Coded Decimal Interchange Code
B. Extended Bit Code Decimal Interchange Code
C. Extended Bit Case Decimal Interchange Code
D. Extended Binary Case Decimal Interchange Code
Right Answer: Extended Binary Coded Decimal Interchange Code
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___________is the process of dividing the disk into tracks and sectors?
A. Tracking
B. Formatting
C. Crashing
D. Allotting
Right Answer: Formatting
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LAN stands for?
A. Limited Area Network
B. Logical Area Network
C. Local Area Network
D. Large Area Network
Right Answer: Local Area Network
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Large transaction processing systems in automated organisations use?
A. Online processing
B. Batch Processing
C. Once-a-day Processing
D. End-of-day processing
Right Answer: Batch Processing
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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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A ____________is a microprocessor -based computing device?
A. personal computer
B. mainframe
C. workstation
D. server
Right Answer: personal computer
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Which of the following controls the process of interaction between the user and the operating system?
A. User interface
B. Language translator
C. Platform
D. Screen saver
Right Answer: User interface
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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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A device, which is not connected to CPU, is called as?
A. land-line device
B. On-line device
C. Off-line device
D. Device
Right Answer: Off-line device
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NOS stands for?
A. Node operating system
B. Non-open software
C. Network Operating system
D. Non-operating software
Right Answer: Network Operating system
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What is embedded system?
A. The programme which arrives by being wrapped in box.
B. The programme which is the permanent part of the computer
C. The computer which is the part of a big computer
D. The computer and software system that control the machine
Right Answer: The computer and software system that control the machine
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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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1 Byte =?
A. 8 bits
B. 4 bits
C. 2 bits
D. 9 bits
Right Answer: 8 bits
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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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____________Is the functional key to display save-as box?
A. F5
B. F6
C. F9
D. F12
Right Answer: F12
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A computer cannot ‘boot’ if it does not have the?
A. Compiler
B. Loader
C. Operating System
D. Assembler
Right Answer: Operating System
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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
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When did John Napier develop logarithm?
A. 1416
B. 1614
C. 1641
D. 1804
Right Answer: 1614
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Examples of output devices are?
A. Screen
B. Printer
C. Speaker
D. All of these
Right Answer: All of these
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