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August 10, 2015

Computer Knowledge One-Liner Questions for Competitive Exams

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Hi I am Sarath Chandra ...here i am sharing some important Computer One-liner questions for upcoming competitive exams. Happy Reading :)
  • 1 nibble equals to---------4 bits
  • A collection of related instructions organized for a common purpose is referred to as------Program
  • A Dumb terminal has--------Keyboard and Screen
  • A group of magnetic tapes, videos or terminals usually under the control of one master is---Cluster
  • A hybrid computer------- Resembles both a digital and analogue computer
  • A normal CD-ROM usually can store up to data-----------680 MB
  • A Pixel is--------------- The smallest resolvable part of a picture
  • A register organized to allow to move left or right operations is called a---Shift register
  • A set of flip flops integrated together is called---------------Register
  • A technique used by codes to convert an analog signal into a digital bit stream is known as-------- Pulse code modulation
  • Abacus was the first--------------- mechanical calculator
  • An application program that helps the user to change any number and immediately see the result of that change is--------- Spreadsheet
  • An error in computer data is called--------Bug
  • An input /output device at which data enters or leaves a computer system is---------- Terminal
  • An integrated circuit is-------------------- Fabricated on a tiny silicon chip
  • An output device that uses words or messages recorded on a magnetic medium to produce audio response is-----------Voice response unit
  • ASCII and EBCDIC are the popular character coding systems
  • ASCII stands for---------American Standard Code for Information Interchange
  • ASCII stands for------American Standard Code for Information Interchange
  • Before a disk can be used to store data. It must be------Formatted
  • Can you tell what passes into and out from the computer via its ports ----Data
  • CD-ROM stands for------------Compactable Disk Read Only Memory
  • Chief component of first generation computer was----- Vacuum Tubes and Valve
  • Computer instructions written with the use of English words instead of binary machine code is called-----opcode
  • Computer is free from tiresome and boardoom. We call it------ Diligence
  • Computer Model IBM 1401 is-------- Second Generation Computer
  • Computer professionals working in a computer centre are--------- Humanware
  • Computer system comprises of major units---- input unit, output unit, central processing unit and storage unit
  • Computers built before the First Generation of computers were----------Electro-mechanical
  • country which contributed-----Taiwan
  • CPU speed of a personal computer is------------------100 KIPS( thousand instructions per second )
  • Descending Order of a data Hierarchy is------- Database – File – Record – Fields – Bytes – Bit
  • EBCDIC stand for----------------------- Extended Binary Coded Decimal Interchange Code
  • EEPROM stands for-----Electrically Erasable Programmable Read Only Memory
  • Fifth generation computer is also known as---------------------Very Knowledge information processing system
  • Floppy disks which are made from flexible plastic material are also called-------Diskettes
  • FORTRAN programming language is more suitable for--------Scientific Applications
  • From which generation computers the printers were used------ second
  • From which generation operating systems were developed-------- Third
  • Hard disk is coated in both sides with-------- Magnetic metallic oxide
  • High density double sided floppy disks could store of data------------------------- 1.44 MB
  • IBM 1401 computer was------------Mainframe Computer
  • If in a computer, 16 bits are used to specify address in a RAM, the number of addresses will be-------- 65,536
  • IMB launched its first personal computer called IBM-PC in 1981. It had chips from Intel, disk drives from Tandon, operating system from Microsoft, the printer from Epson and the application software from everywhere. Can you name the
  • In ________ mode, the communication channel is used in both directions at the same time---- Full-duplex
  • In a computer _____ is capable to store single binary bit-------Flip flop
  • In Computer Architecture a Bus is-------a collection of shared communication wires
  • In Computer System Memory management operations are performed by------ Operating system
  • In Computer terminology ‘CAD’ is stands for----------Computer Aided Design
  • In computing and electronic systems BCD is abbreviation of------ Binary Coded Decimal
  • In which mode Windows starts with only the core drivers & services-------Safe Mode
  • Instructions and memory address are represented by-------- Binary codes
  • Magnetic tape can serve as------Secondary storage media
  • Memory is made up of------- Large number of cells
  • MICR stands for------Magnetic Ink Character Reader
  • Mnemonic a memory trick is used in which of the following language------ Assembly language
  • Mostly of the following device is used to carry user files-------Floppy Disk
  • MSI is the abbreviation of------------------------ Medium Scale Integrated
  • Multi user systems provided cost savings for small business because they use a single processing unit to link several------ Dumb terminals
  • Operating system, editors, and debuggers comes under--------System Software
  • Physical connection between Microprocessor Memory and other parts is called---Address bus
  • Plotter accuracy is measured in terms of repeatability and--------------Resolution
  • Programs are executed on the basis of a priority number in a--------------------------Multiprogramming
  • RATS stand for---------Regression Analysis Time Series
  • Raw facts and figures about any particular topic are-------- data
  • Shortcut Notation for groups of four Binary Digits is called Number-----Hexadecimal
  • Signals can be analog or digital and a computer that processes the both type of signals is known as-------Hybrid Computer
  • Size of the primary memory of a PC ranges between---------------64KB & 256KB
  • Speed of Laser Printer is measured in--------PPM (pages of text per minute )
  • The acronym of WORM in a Computer System is---------Write Once Read Many
  • The ALU of a computer responds to the commands coming from----- Control section
  • The arranging of data in a logical sequence is called----------- Sorting
  • The BIOS is the abbreviation of------------------------Basic Input Output System
  • The cheapest memory devices in terms of Cost/Bit-----------Compact Disks
  • The contents of information are stored in--------- Memory data register
  • The difference between memory and storage is that ---------- memory is Temporary and storage is permanent
  • The fastest access time------------------------------Semiconductor Memories
  • The first digital computer built with IC chips was known as----------IBM System / 360
  • The first general purpose electronic computer in the world was-------- ENIAC
  • The first general purpose electronic digital computer in the world was--- UNIVAC(UNIVersal Automatic Computer)
  • The first Macintosh computer was from---- Fourth generation
  • The first microprocessor built by the Intel corporation was called--------4004
  • The magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known as----------Magnetic bubble memory
  • The memory which is programmed at the time it is manufactured------- PROM
  • The output quality of a printer is measured by-------------Dot per inch
  • The programs which are as permanent as hardware and stored in ROM is known as----- Firmware
  • The programs which are as permanent as hardware and stored in ROM is known as-------- Firmware
  • The Second Generation Computer was based on-------------Transistor
  • the stages in the compilation process--------Lexical Analysis, syntax analysis, and code generation
  • The subject of cybernetics deals with the science of-------Control and communication
  • The Third Generation Computer was made with--------------IC(Integrated Circuit)
  • The two kinds of main memory are---------- Primary and secondary
  • The two major types of computer chips are----------- Primary memory chip, Microprocessor chip
  • Through which device the main components of the computer communicate with each other------------------System Bus
  • To “Debug” the System means-------- Find and Correct Errors on System
  • UNIVAC is-------- Universal Automatic Computer
  • WAN stands for------- Wide Area Network
  • What are the computers called that performs calculations and comparisons usually in the binary numbering system---------- Digital Computers
  • What do you call the translator which takes assembly language program as input & produce machine language code as output------ Assembler
  • What does DMA stand for----------------------Direct Memory Access
  • What is a compiler---- A compiler converts the whole of a higher level program code into machine code in one step
  • What is a light pen-------------Optical input device
  • What is an interpreter--------An interpreter does the conversion line by line as the program is run
  • What is required when more than one person uses a central computer at the same time------ Terminal
  • What is the date when Babbage conceived Analytical engine------- 1837
  • What is Unicode----------Character Encoding System
  • When a key is pressed on the keyboard, which standard is used for converting the keystroke into the corresponding bits-----------------------------ANSI
  • When did John Napier develop first logarithm------1614
  • When was vacuum tube invented----------- 1906
  • Which access method is used to access cassette tape------ Sequential
  • Which company is the biggest player in the microprocessor industry----- Intel
  • Which device is used as the standard pointing device in a Graphical User Environment----Mouse
  • Which is the largest manufacturer of Hard Disk Drives---------Seagate
  • Which is used for manufacturing chips---------- Semiconductors
  • Which is used for manufacturing chips------Semiconductor
  • Which language is directly understood by the computer without translation program----Machine language
  • Which Language that Computer can Understand & Execute-------Machine Language
  • Which machine was not invented by Charles Babbage-------Analytical Engine and Difference Engine
  • Which number system is usually followed in a typical 32-bit computer---------------- Binary
  • Which of the following IC was used in third generation of computers--- SSI( Small-Scale Integration),MSI( Medium Scale Integration)
  • Which of the following is the most commonly used encoding standard of Unicode-----UTF-8(Unicode Transformation Format)
  • Which of the following memories must be refreshed many times per second----- Dynamic RAM
  • Which of the following programming language were used in first generation computers------ Machine language
  • Which of the printers used in conjunction with computers uses dry ink powder--------- Laser printer
  • Which parameters decided the performance of the memory—Latency, Cycle time, Transfer rate
  • Which produces the best quality graphics reproduction---------- Plotter
  • Which storage devices can store maximum amount of data----------Hard Disk
  • Which technology is used in Compact disks-------Laser
  • Which technology is used in Compact disks-------Laser
  • Which unit holds data temporarily------- Primary Memory Unit
  • Which was the most popular first generation computer------------ IBM 1650
  • Which was the world’s first minicomputer and when was it introduced-------PDP-I, 1958
  • Who designed the first electronics computer ? ENIAC-------------J. P. Eckert and J. W. Mauchly
  • Who developed a mechanical device in the 17th century that could add, subtract, multiple, divide and find square roots--------Leibniz
  • Who invented Integrated Circuit (IC)----------- Jack Kilby
  • Who invented the microprocessor----------------Marcian E Huff
  • Who is the inventor of ABC Computer------- John v. Atanasoff, Clifford Berry
  • Word length of a Personal Computer is---------------8 bits
Read MS Office One-Liner Questions from here
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