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
In 1999, the Melissa virus was a widely publicised?
A. E-mail virus.
B. Macro virus.
C. Trojan horse.
D. Time bomb.
Right Answer: E-mail virus.
Total 1 Votes:
0
1
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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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0
1
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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
Total 2 Votes:
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2
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A self replicating program, similar to a virus which was taken from a 1970s science fiction novel by John Bruner entitled the Shockwave Rider is?
A. Bug
B. Vice
C. Lice
D. Worm
Right Answer: Worm
Total 3 Votes:
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3
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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
Total 2 Votes:
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2
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Second Generation computers were developed during?
A. 1949 to 1955
B. 1956 to 1965
C. 1965 to 1970
D. 1970 to 1990
Right Answer: 1956 to 1965
Total 2 Votes:
1
1
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What type of resource is most likely to be a shared common resource in a computer Network?
A. Printers
B. Speakers
C. Floppy disk drives
D. Keyboards
Right Answer: Printers
Total 3 Votes:
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3
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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
Total 1 Votes:
0
1
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You can organize files by storing them in?
A. archives
B. folders
C. indexes
D. lists
Right Answer: folders
Total 2 Votes:
1
1
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A set of rules for telling the computer what operations to perform is called a?
A. procedural language
B. structures
C. natural language
D. programming language
Right Answer: programming language
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2
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ALU and Control Unit jointly known as?
A. RAM
B. ROM
C. CPU
D. PC
Right Answer: CPU
Total 4 Votes:
1
3
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What is the name given to those applications that combine text, sound, graphics, motion video, and/or animation?
A. Motionware
B. Anigraphics
C. Videoscapes
D. Multimedia
E. None of these
Right Answer: Multimedia
Total 4 Votes:
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4
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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
Total 2 Votes:
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2
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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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5
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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
Total 4 Votes:
0
4
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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
Total 3 Votes:
1
2
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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.
Total 0 Votes:
0
0
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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
Total 1 Votes:
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1
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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
Total 2 Votes:
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2
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ASCII is a coding system that provides?
A. 256 different characters
B. 512 different characters
C. 1024 different characters
D. 128 different characters
Right Answer: 1024 different characters
Total 4 Votes:
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4
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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
Total 1 Votes:
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1
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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
Total 1 Votes:
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1
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Which of the following is NOT one of the four major data processing functions of a computer?
A. gathering data
B. processing data into information
C. analyzing the data or information
D. storing the data or information
Right Answer: analyzing the data or information
Total 4 Votes:
2
2
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_____________is a windows utility program that locates and eliminates unncessary fragments and rearranges filed and unused disk space to optimize operations?
A. Backup
B. Disk cleanup
C. Disk Defragmenter
D. Restore
Right Answer: Disk Defragmenter
Total 2 Votes:
0
2
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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
Total 3 Votes:
1
2
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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
Total 2 Votes:
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2
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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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3
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Smallest font size in MS-word is?
A. 6
B. 8
C. 10
D. 12
Right Answer: 8
Total 6 Votes:
1
5
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The typical computer criminal is a(n)?
A. Young hacker.
B. Trusted employee with no criminal record.
C. Trusted employee with a long, but unknown criminal record.
D. Overseas young cracker.
Right Answer: Trusted employee with no criminal record.
Total 3 Votes:
0
3
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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
Total 1 Votes:
0
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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0
1
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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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2
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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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0
1
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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
Total 2 Votes:
0
2
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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
Total 1 Votes:
0
1
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_____________computers operates essentially by counting?
A. Portable computer
B. Hybrid computer
C. Analog computer
D. Digital computer
Right Answer: Digital computer
Total 4 Votes:
1
3
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All of the following are examples of real security and privacy risks EXCEPT?
A. hackers
B. Spam
C. Viruses
D. identity theft
Right Answer: Spam
Total 3 Votes:
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3
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1 Byte =?
A. 8 bits
B. 4 bits
C. 2 bits
D. 9 bits
Right Answer: 8 bits
Total 3 Votes:
0
3
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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
Total 4 Votes:
0
4
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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
Total 2 Votes:
1
1
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CAD stands for?
A. Computer aided design
B. Computer algorithm for design
C. Computer application in design
D. Computer analogue design
Right Answer: Computer aided design
Total 2 Votes:
0
2
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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
Total 1 Votes:
0
1
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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
Total 1 Votes:
0
1
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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
Total 3 Votes:
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3
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Who invented Slide Rules?
A. John Napier
B. William Oughtred
C. Gottfried Leibnitz
D. Blaise Pascal
Right Answer: William Oughtred
Total 3 Votes:
0
3
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First page of Website is termed as?
A. Homepage
B. Index
C. JAVA script
D. Bookmark
Right Answer: Homepage
Total 0 Votes:
0
0
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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
Total 3 Votes:
0
3
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By programmable machine we mean?
A. computers
B. modern television
C. washing machines
D. anything that can be set to perform different tasks with suitable programs
Right Answer: computers
Total 2 Votes:
0
2
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What is the main difference between a mainframe and a super computer?
A. Super computer is much larger than mainframe computers
B. Super computers are much smaller than mainframe computers
C. Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently
D. Supercomputers are focused to execute as many programs as possible while mainframe uses its power to execute few programs as fast as possible.
Right Answer: Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently.
Total 2 Votes:
0
2
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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
Total 1 Votes:
0
1
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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:
0
3
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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
Total 2 Votes:
0
2
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__________is defined as any crime completed through the use of computer technology?
A. Computer forensics
B. Computer crime
C. Hacking
D. Cracking
Right Answer: Computer crime
Total 3 Votes:
2
1
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Note book, laptop,palm,hand-held computers are coming under the category of__________computer?
A. Digital computer
B. Mainframe computer
C. Portable computer
D. Hybrid computer
Right Answer: Portable computer
Total 6 Votes:
1
5
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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
Total 0 Votes:
0
0
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____________translates and executes program at run time line by line?
A. Compiler
B. Interpreter
C. Linker
D. Loader
Right Answer: Interpreter
Total 0 Votes:
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0
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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
Total 3 Votes:
0
3
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UNIVAC is?
A. Universal Automatic Computer
B. Universal Array Computer
C. Unique Automatic Computer
D. Unvalued Automatic Computer
Right Answer: Universal Automatic Computer
Total 4 Votes:
1
3
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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
Total 1 Votes:
0
1
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A(n)_______________appearing on a web page opens another document when clicked?
A. anchor
B. URL
C. hyperlink
D. reference
Right Answer: hyperlink
Total 3 Votes:
0
3
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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
Total 2 Votes:
0
2
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A computer program that translates one program instructions at a time into machine language is called a/an?
A. Interpreter
B. CPU
C. Compiler
D. Simulator
Right Answer: Interpreter
Total 3 Votes:
0
3
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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
2
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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
Total 0 Votes:
0
0
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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
Total 0 Votes:
0
0
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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:
0
1
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physical structure of computer is called?
A. Software
B. Hardware
C. Human ware
D. All of these
Right Answer: Hardware
Total 1 Votes:
0
1
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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
Total 1 Votes:
0
1
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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
Total 1 Votes:
0
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 5 Votes:
1
4
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What feature adjusts the top and bottom margins so that the text is centered vertically on the printed page?
A. Vertical justifying
B. Vertical adjusting
C. Dual centering
D. Horizontal centering
Right Answer: Vertical justifying
Total 1 Votes:
0
1
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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
Total 1 Votes:
0
1
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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:
0
0
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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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Which of the following is not a binary number?
A. 001
B. 101
C. 202
D. 110
Right Answer: 202
Total 2 Votes:
0
2
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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
Total 0 Votes:
0
0
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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
Total 4 Votes:
0
4
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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:
0
4
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Examples of output devices are?
A. Screen
B. Printer
C. Speaker
D. All of these
Right Answer: All of these
Total 0 Votes:
0
0
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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
Total 3 Votes:
0
3
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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
Total 3 Votes:
0
3
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____________Is the functional key to display save-as box?
A. F5
B. F6
C. F9
D. F12
Right Answer: F12
Total 2 Votes:
0
2
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A device that connects to a network without the use of cables is said to be?
A. Distributed
B. free
C. centralized
D. none of these
Right Answer: none of these
Total 2 Votes:
0
2
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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
Total 4 Votes:
0
4
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MIS is designed to provide information needed for effective decision making by?
A. Consumers
B. Workers
C. Foremen
D. Managers
Right Answer: Managers
Total 3 Votes:
0
3
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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
Total 4 Votes:
0
4
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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
Total 0 Votes:
0
0
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The basic operations performed by a computer are?
A. Arithmetic operation
B. Logical operation
C. Storage and relative
D. All the above
Right Answer: All the above
Total 2 Votes:
0
2
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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
Total 1 Votes:
0
1
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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
Total 2 Votes:
0
2
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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
Total 0 Votes:
0
0
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The ability to recover and read deleted or damaged files from a criminal’s computer is an example of a law enforcement speciality called?
A. robotics
B. simulation
C. computer forensics
D. animation
Right Answer: computer forensics
Total 3 Votes:
0
3
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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
Total 0 Votes:
0
0
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___________refers to electronic trespassing or criminal hacking?
A. Cracking
B. Jacking
C. Spoofing
D. Smarming
Right Answer: Cracking
Total 0 Votes:
0
0
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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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Personnel who design, program, operate and maintain computer equipment refers to?
A. Console-operator
B. Programmer
C. Peopleware
D. System Analyst
Right Answer: Peopleware
Total 7 Votes:
1
6
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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
Total 2 Votes:
0
2
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A(n)_____________program is one that is ready to run and does not need to be altered in any way?
A. Interpreter
B. High level
C. Compiler
D. Executable
Right Answer: Executable
Total 1 Votes:
0
1
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_____________is computer software designed to operate the computer hardware and to provide platform for running application software?
A. Application software
B. System software
C. Software
D. Operating system
Right Answer: System software
Total 3 Votes:
0
3
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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
Total 1 Votes:
0
1
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