Basic Computer Knowledge Questions and Answers for exam preparation. Basic Computer Knowledge is one of the most important sections in the entire competitive, Campus and entrance online test.
Q. Faulty inputs lead to faulty results. It is known as ___.
(A) Diligence
(B) Versatility
(C) GIGO
(D) None of the Above
Answer:- (C) GIGO
Q. Which of the following is/are characteristics of a Computer?
(A) Diligence
(B) Versatility
(C) Reliability
(D) All of the Above
Answer:- (D) All of the Above
Q. First Generation computers used _ for Circuitry and _ for memory
(A) Transistor and Magnetic Core
(B) IC and Magnetic Memory
(C) Vacuum tubes and Magnetic drum
(D) IC and Magnetic Core
Answer:- (C) Vacuum tubes and Magnetic drum
Q. The capacity to perform multiple tasks simultaneously is termed as __.
(A) Diligence
(B) Versatility
(C) Reliability
(D) All of the Above
Answer:- (B) Versatility
Q. A hybrid computer is the one having combined properties of ____.
(A) Micro & Minicomputers
(B) Mini & Super Computers
(C) Mainframe & Super Computers
(D) Analog & Digital computers
Answer:- (D) Analog & Digital computers
Q. GIGO stands for______.
(A) Garbage In Garbage Out
(B) Gateway In Gateway Out
(C) Gopher In Gopher Out
(D) Geographic In Geographic Out
Answer:- (A) Garbage In Garbage Out
Q. Father of modern computer______
(A) Charles Babbage
(B) Alan Turing
(C) Ted Hoff
(D) None of the Above
Answer:- (B) Alan Turing
Q. In EDSAC, an addition operation was completed in _ micro
seconds.
(A) 4000
(B) 3000
(C) 2000
(D) 1500
Answer:- (D) 1500
Q. ULSI stands for______
(A) Ultra Large Scale Integration
(B) Ultimate Large Scale Integration
(C) Upper Large Scale Integration
(D) Ultra Large Script Integration
Answer:- (A) Ultra Large Scale Integration
Q. IC is made up of ____.
(A) microprocessor
(B) vacuum tube
(C) transistor
(D) None of the Above
Answer:- (C) transistor
Q. FLOPS stands for______
(A) Floating Point Operation Per Second
(B) File Processing Operation Per Second
(C) Floating Processing Operation Per Second
(D) File Loading Operation Per Second
Answer:- (A) Floating Point Operation Per Second
Q. Third Generation computers were based on _
(A) IC
(B) Vacuum tube
(C) transistor
(D) None of the Above
Answer:- (A) IC
Q. EDSAC stands for________
(A) Electronic Delay Storage Automatic Computer
(B) Electronic Discrete Storage Automatic Computer
(C) Electronic Delay Serial Automatic Computer
(D) Electronic Discrete Storage Automatic Computer
Answer:- (A) Electronic Delay Storage Automatic Computer
Q. Electronic Discrete Variable Automatic Computer (EDVAC) was designed on ____ concept.
(A) Objective Programming
(B) Stored program
(C) Both (A) and (B)
(D) None of the Above
Answer:- (B) Stored program
Q. Second Generation computers were based on ____.
(A) IC
(B) Vacuum tube
(C) transistor
(D) None of the Above
Answer:- (C) transistor
Q. “Stored Program” concept was developed by __
(A) Maurice Wilkes
(B) Von Neumann
(C) M.H.A. Newman
(D) None of the Above
Answer:- (B) Von Neumann
Q. Which language was used to program Second Generation computers?
(A) Binary Coded language
(B) Assembly language
(C) Machine language
(D) None of the Above
Answer:- (B) Assembly language
Q. Which of the following uses a handheld Operating Systems?
(A) Super Computer
(B) Laptop
(C) Mainframe
(D) PDA
Answer:- (D) PDA
Q. Instructions and data can be stored in the memory of the Computer for automatically directing the flow of operations. It is called ______ concept.
(A) Objective Programming
(B) Stored program
(C) Both (A) and (B)
(D) None of the Above
Answer:- (B) Stored program
Q. A computer does not suffer from tiredness and lack of concentration. It is known as _
(A) Diligence
(B) Versatility
(C) GIGO
(D) None of the Above
Answer:- (A) Diligence
Q.______ is an artificial neural network with multiple hidden layers between the input and output layers?
(A) Deep neural network
(B) Shallow neural network
(C) Both(A) & (B)
(D) None of the Above
Answer:- (A) Deep neural network
Q. Which of the following is the smallest and fastest computer imitating brain working?
(A) Super Computer
(B) Quantum Computer
(C) Mainframe Computer
(D) PDA
Answer:- (B) Quantum Computer
Q. A neural network in which the signal passes in only one direction is called ____.
(A) Feed forward Neural Network
(B) Recurrent Neural Network
(C) Both(A) & (B)
(D) None of the Above
Answer:- (A) Feed forward Neural Network
Q. A _ terminal can display images as well as text.
(A) text
(B) dumb
(C) graphical
(D) None of the Above
Answer:- (C) graphical
Q. The most famous Recurrent Neural Network is ____.
(A) Perceptrons
(B) Radial Basis Networks
(C) Hopfield net
(D) None of the Above
Answer:- (C) Hopfield net
Q. Which language is used for Artificial Intelligence (AI)?
(A) FORTRAN
(B) COBOL
(C) C
(D) PROLOG
Answer:- (D) PROLOG
Q. ____ is a computational model based on the structure of biological neural networks?
(A) Artificial Neural Network (ANN)
(B) Biological Network
(C) Both(A) & (B)
(D) None of the Above
Answer:- (A) Artificial Neural Network (ANN)
Q. A _ terminal does not process or store data.
(A) dumb
(B) intelligent
(C) Both(A) & (B)
(D) None of the Above
Answer:- (A) dumb
Q. Which neural network allows feedback signal?
(A) Feed forward Neural Network
(B) Recurrent Neural Network
(C) Both(A) & (B)
(D) None of the Above
Answer:- (B) Recurrent Neural Network
Q. The chip used in computers, is made of ______.
(A) Silicon
(B) Iron Oxide
(C) Chromium
(D) None of the Above
Answer:- (A) Silicon
Q. Which of the following is/are application(s) of Neural Network?
(A) Pattern recognition
(B) Mobile Computing
(C) Speech reading(Lip-reading)
(D) All of the Above
Answer:- (D) All of the Above
Q. Fourth Generation computers were based on ____.
(A) IC
(B) Vacuum tube
(C) transistor
(D) Microprocessors
Answer:- (D) Microprocessors
Q. The user generally applies _ to access mainframe or supercomputer?
(A) node
(B) terminal
(C) desktop
(D) None of the Above
Answer:- (B) terminal
Q. Radial Basis Function (RBF) networks have _ layers.
(A) One
(B) Four
(C) Two
(D) Three
Answer:- (D) Three
Q. The first calculator that can perform all four arithmetic operations(Addition, Subtraction, Multiplication, Division) was known as______.
(A) Pascaline
(B) Slide Rule
(C) Step Reckoner
(D) None of the Above
Answer:- (C) Step Reckoner
Q. Desktop and Personal computers are also known as_______
(A) Super Computer
(B) Quantum Computer
(C) Mainframe Computer
(D) Micro Computer
Answer:- (D) Micro Computer
Q. Which language is directly understood by the computer without a translation program?
(A) BASIC
(B) Assembly language
(C) Machine language
(D) C language
Answer:- (C) Machine language
Q. The first computer spreadsheet program was_________.
(A) Lotus 1-2-3
(B) MS Excel
(C) Visicalc
(D) None of the Above
Answer:- (C) Visicalc
Q. Herman Hollerith developed a machine called________.
(A) Pascaline
(B) Analytical engine
(C) Census Tabulator
(D) Tabulating Machine
Answer:- (D) Tabulating Machine
Q. VDU stands for________.
(A) Video Display Unit
(B) Visual Display Unit
(C) Video Divide Unit
(D) None of the Above
Answer:- (B) Visual Display Unit
Q. Which is not an integral part of computer?
(A) CPU
(B) Monitor
(C) Mouse
(D) UPS
Answer:- (D) UPS
Q. Which registers can interact with secondary memory?
(A) Register
(B) Memory Address Register(MAR)
(C) Instruction Register(IR)
(D) None of the Above
Answer:- (B) Memory Address Register(MAR)
Q. The most frequently used instructions of a computer program are likely to be fetched from __
(A) Hard disk
(B) ROM
(C) RAM
(D) Cache
Answer:- (D) Cache
Q. The main circuit-board of the system unit is _
(A) RAM
(B) Mother Board
(C) Hard disk
(D) None of the Above
Answer:- (B) Mother Board
Q. Which Flip Flop is used to store data in registers?
(A) D Flip Flop
(B) JK Flip Flop
(C) RS Flip Flop
(D) None of the Above
Answer:- (A) D Flip Flop
Q. ALU and Control Unit have special purpose locations called ____.
(A) Registers
(B) Mother Board
(C) Sockets
(D) None of the Above
Answer:- (A) Registers
Q. Which bus connects all the internal components of a computer such as CPU and memory to the main board(motherboard)?
A. Expansion Bus
B. External Bus
C. Internal Bus
D. None of the Above
Answer:- C. Internal Bus
Q. The decoded instruction is stored in __
(A) Register
(B) Memory Address Register(MAR)
(C) Instruction Register(IR)
(D) None of the Above
Answer:- (C) Instruction Register(IR)
Q. A computer bus that is used to specify a Physical address?
A. Address Bus
B. Data Bus
C. Control Bus
D. None of the Above
Answer:- A. Address Bus
Q. External Bus is also referred as ____.
A. System Bus
B. Memory Bus
C. Front-Side Bus
D. Expansion Bus
Answer:- D. Expansion Bus
Q. __ is a register for Short-term, intermediate storage of
arithmetic and logic data in a Computer’s CPU.
A. Accumulator
B. Bus
C. Buffer
D. None of the Above
Answer:- A. Accumulator
Q. RISC stands for________.
A. Reverse Instruction Set Computer
B. Reverse Information Set Computer
C. Reduced Information Set Computer
D. Reduced Instruction Set Computer
Answer:- D. Reduced Instruction Set Computer
Q. Von Neumann Architecture is a ___.
A. Multiple Instruction Multiple Data(MIMD)
B. Single Instruction Multiple Data(SIMD)
C. Multiple Instruction Single Data(MISD)
D. Single Instruction Single Data(SISD)
Answer:- D. Single Instruction Single Data(SISD)
Q. The Command to access the memory or the I/O device is
carried by ____.
A. Address Bus
B. Data Bus
C. Control Bus
D. None of the Above
Answer:- C. Control Bus
Q. CISC stands for ____.
A. Compound Instruction Set Computer
B. Complex Information Set Computer
C. Compound Information Set Computer
D. Complex Instruction Set Computer
Answer:- D. Complex Instruction Set Computer
Q. Programming that actually controls the path of signals or data within computer is called________.
A. Assembly language Programming
B. Machine language Programming
C. Micro Programming
D. None of the Above
Answer:- C. Micro Programming
Q. The computer performs all mathematical and logical operations inside its ____.
A. Visual Display Unit
B. Memory Unit
C. Output Unit
D. Central Processing Unit
Answer:- D. Central Processing Unit
Q. The circuit used to store one bit of data is known as_____
A. Encoder
B. OR
C. Flip Flop
D. None of the Above
Answer:- C. Flip Flop
Q. An interrupt can be temporarily ignored by the counter is called ____.
A. Maskable Interrupt
B. Non-maskable Interrupt
C. vectored Interrupt
D. None of the Above
Answer:- A. Maskable Interrupt
Q. An interface that provides I/O transfer of data directly to and form the memory unit and peripheral is termed as________.
A. DDA
B. Serial interface
C. Direct Memory Access (DMA)
D. None of the Above
Answer:- C. Direct Memory Access (DMA)
Q. A basic instruction that can be interpreted by computer generally has __
A. An operand and an address
B. decoder and an accumulator
C. Sequence register and decoder
D. None of the Above
Answer:- A. An operand and an address
Q. The control unit controls other units by generating control and _
A. Command Signals
B. Timing signals
C. Transfer signals
D. None of the Above
Answer:- B. Timing signals
Q. Which register keeps tracks of the instructions in the program stored in memory?
A. Address Register
B. Index Register
C. Program Counter
D. None of the Above
Answer:- C. Program Counter
Q. The operation executed on data stored in registers is called_______
A. Macro-operation
B. Micro-operation
C. Bit-operation
D. None of the Above
Answer:- B. Micro-operation
Q. The load instruction is mostly used to designate a transfer from memory to a processor register known as_________
A. Accumulator
B. Instruction Register
C. Program counter
D. Memory address Register
Answer:- A. Accumulator
Q. When necessary, the results are transferred from the CPU to main memory by ____.
A. I/O devices.
B. CPU.
C. Shift registers.
D. None of the Above.
Answer:- C. Shift registers.
Q. The communication between the components in a microcomputer takes place via the address and __
A. I/O bus
B. Data bus
C. Address bus
D. None of the Above
Answer:- B. Data bus
Q. Which addressing mode is most suitable to change the normal sequence of execution of instructions?
A. Immediate
B. Indirect
C. Relative
D. None of the Above
Answer:- C. Relative
Q. A group of bits that tell the computer to perform a specific operation is known as_______.
A. Instruction code
B. Micro-operation
C. Accumulator
D. Register
Answer:- A. Instruction code
Q. Which of the following is used as an intermediate to extend the processor BUS?
A. Gateway
B. Router
C. Connector
D. Bridge
Answer:- D. Bridge
Q. The process where in the processor constantly checks the
status flags is called as ____.
A. Polling
B. Inspection
C. Reviewing
D. None of the Above
Answer:- A. Polling
Q. The addressing mode which makes use of in-direction pointers is ____.
A. Offset addressing mode
B. Relative addressing mode
C. Indirect addressing mode
D. None of the Above
Answer:- C. Indirect addressing mode
Q. The method of accessing the I/O devices by repeatedly
checking the status flags is_________
A. Memory-mapped I/O
B. Program-controlled I/O
C. I/O mapped
D. None of the Above
Answer:- B. Program-controlled I/O
Q. The pattern of printed lines on most products are called __
A. OCR
B. prices
C. bar codes
D. None of the Above
Answer:- C. bar codes
Q. Interrupts which are initiated by an I/O drive are _
A. internal
B. external
C. Both (A) and (B)
D. All of the above
Answer:- B. external
Q. The branch logic that provides decision making capabilities in the control unit is known as_______
A. conditional transfer
B. unconditional transfer
C. Both (A) and (B)
D. None of the above
Answer:- B. unconditional transfer
Q. MICR stands for __
A. Magnetic Ink Colour Recognition
B. Magnetic Ink Code Recognition
C. Magnetic Ink Computer Recognition
D. Magnetic Ink Character Recognition
Answer:- D. Magnetic Ink Character Recognition
Q. Content of the program counter is added to the address part of the instruction in order to obtain the effective address is called_______
A. relative address mode.
B. index addressing mode.
C. register mode.
D. implied mode.
Answer:- A. relative address mode.
Q. Which of the following groups consist of only Input devices?
A. Mouse, Keyboard, Monitor
B. Mouse, Keyboard, Printer
C. Mouse, Keyboard, Plotter
D. Mouse, Keyboard, Scanner
Answer:- D. Mouse, Keyboard, Scanner
Q. A joystick is primarily used to/for __.
A. print text
B. draw picture
C. computer gaming
D. None of the Above
Answer:- C. computer gaming
Q. The OCR recognises the _ of the characters with the help of light source.
A. Size
B. Shape
C. Colour
D. None of the Above
Answer:- B. Shape
Q. The __ may also be called the screen or monitor.
A. Scanner
B. Display
C. Hard Disk
D. None of the Above
Answer:- B. Display
Q. USB refers to a _____.
A. storage device
B. processor
C. port type
D. None of the Above
Answer:- C. port type
Q. What type of devices are computer speakers or headphones?
A. Input
B. Output
C. Input/Output
D. None of the Above
Answer:- B. Output
Q. Which Unit is used to measure the speed of a printer?
A. DPI
B. CPM
C. PPM
D. None of the Above
Answer:- C. PPM
Q. The rate at which scanning is repeated in a CRT is called __
A. Resolution
B. Refresh rate
C. Bandwidth
D. None of the Above
Answer:- B. Refresh rate
Q. A parallel port is most often used by __
A. Scanner
B. Printer
C. Keyboard
D. Mouse
Answer:- B. Printer
Q. Trackball is an example of a/an ____.
A. Output device
B. Printing device
C. Pointing device
D. None of the Above
Answer:- C. Pointing device
Q. A hard copy would prepared on a _
A. Dot matrix Printer
B. Plotter
C. Type Writer Terminal
D. All of the above
Answer:- D. All of the above
Q. Which is the best position for operating the mouse?
A. Tail away from the user
B. Tail facing the right
C. Tail facing the left
D. Tail towards the user
Answer:- D. Tail towards the user
Q. A hard copy would prepared on a _
A. Dot matrix Printer
B. Plotter
C. Type Writer Terminal
D. All of the above
Answer:- D. All of the above
Q. First Computer mouse was built by_______
A. Douglas Engelbart
B. William English
C. Robert Zawacki
D. Von Neumann
Answer:- A. Douglas Engelbart
Q. The higher the resolution of a monitor, the _
A. larger the pixels.
B. closer together the pixels.
C. further apart the pixels.
D. less clear the screen is.
Answer:- B. closer together the pixels.
Q. Which of the following is not a hardware?
A. Processor
B. Printer
C. Mouse
D. Java
Answer:- D. Java
Q. In laser printers, printing is achieved by deflecting laser beam on to __ surface of a drum.
A. Magnetic
B. Electric
C. Photosensitive
D. None of the Above
Answer:- C. Photosensitive
Q. The transfer of data from a CPU to peripheral devices of computer is achieved through __
A. Modem
B. Interface
C. Buffer
D. I/O Ports
Answer:- D. I/O Ports
Q. The computer or system peripherals that receives data from processing unit are called _
A. Input Devices
B. Output Devices
C. Both (A) and (B)
D. None of the Above
Answer:- B. Output Devices
Q. The display size of a monitor is measured _
A. diagonally.
B. horizontally.
C. vertically.
D. None of the Above
Answer:- A. diagonally.
Q. A thin plate or board that contains electronic components is called ___.
A. Hard Disk
B. RAM
C. ROM
D. Circuit Board
Answer:- D. Circuit Board
Q. A marker on the computer screen used to show the current position is called ___.
A. coloured marker
B. position checker
C. cursor
D. None of the Above
Answer:- C. cursor
Q. LED stands for _
A. Low Emission Display
B. Liquid Emitting Display
C. Less Emitting Diode
D. Light Emitting Diode
Answer:- D. Light Emitting Diode
Q. The wheel located between the two standard buttons on a mouse is used to __
A. click in Web pages.
B. scroll.
C. click and select items.
D. jump to different Web pages
Answer:- B. scroll.
Q. Printer resolution is usually measured in __
A. Characters Per Minute (CPM)
B. Pixels Per Inch (PPI)
C. Pages Per Minute (PPM)
D. Dots Per Inch (DPI)
Answer:- D. Dots Per Inch (DPI)
Q. Any data and instruction entered in the memory of a computer is__________.
A. Storage
B. Output
C. Input
D. Information
Answer:- C. Input
Q. ____ is an input device that converts analog information
into digital form.
A. Plotter
B. Track Ball
C. Light Pen
D. Digitizer
Answer:- D. Digitizer
Q. __ is a special type of optical scanner used to
recognize the type of mark made by Pen or Pencil.
A. Optical Character Reader
B. Bar code Reader
C. Optical Mark Reader
D. None of the Above
Answer:- C. Optical Mark Reader
Q. Bar-code readers use light to read __
A. UPCs
B. UPSs
C. POSs
D. optical marks
Answer:- A. UPCs
Q. __ printers print the characters by striking them
on the ribbon which is then pressed on the paper.
A. Impact
B. Non Impact
C. Both (A) and (B)
D. None of the Above
Answer:- A. Impact
Q. Which input device is used to read information on a credit card?
A. Graphic Tablet
B. Numeric Keyboard
C. Bar Code reader
D. Magnetic Stripe reader
Answer:- D. Magnetic Stripe reader
Q. Which of the following is non-emissive display?
A. LED
B. LCD
C. Both (A) and (B)
D. None of the Above
Answer:- B. LCD
Q. The work done by a computer operator is displayed in which part of computer?
A. CPU
B. VDU
C. ALU
D. None of the Above
Answer:- B. VDU
Q. Which of the following works as mouse?
A. Keyboard
B. Scanner
C. Track ball
D. None of the Above
Answer:- C. Track ball
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