Many computer users believe that because they are skilled at generating spreadsheets, word processing documents, and presentations, they know everything about computers. These users have moved beyond application basics, but many still do not understand even basic facts.
The below mentioned questions will also helps you to clear all the competitive exams:
- The first programming language was – FORTRAN
- Which stores data permanently in a computer – ROM
- Which is a main system board a computer – Mother Board
- What is a bug in a computer terminology – an error in program
- An electronic path, that sends signals from one part of computer to another is – Bus
- USB is which type of storage device – Tertiary
- Who is known as father of Artificial Intelligence – John Mc Carthy
- Which term is related to database – Oracle
- Computer resolution measures – Number of Pixels
- One nibble is equal to how many bits – 4 Bits
- What can be considered as basic building blocks of a digital circuit – Logic Gates
- What is full form of RAM – Random Access Memory
- Which among following is secondary storage device – Hard Disc
- What is responsible for specifying address of a memory location – Address Bus
- ULSI microprocessor is used in which generation of computers – Fifth Generation
- Where is cache memory is located – CPU
- Which function key is used to check spellings – F7
- Which type of software is an operating system – System Software
- If a computer has more than one processor then it is known as – Multiprocessor
- Which program is run by BIOS to check hardware components are working properly while computer is turned ON – Post
- What is responsible for finding and loading operating system into RAM – Bootstrap Loader
- Full form of URL is – Uniform Resource Locator
- Which type of storage device is a BIOS – Primary
- Which is most common language used in web designing – HTML
- BIOS is used for – Loading Operating System
- Who was the father of Internet – Vin Cerf
- In banking, railways etc which computers are used – Main Frames
- Intersection of columns and rows is called a – Cell
- 1 Mega Byte is equal to – 1024 Kilo Bytes
- What is full form of EXIF – Exchangeable Image File Format
- Which operations are performed by RAM – Read and Write
- WWW stands for – World Wide Web
- Documents, Movies, Images and Photographs etc are stored at a – File Server
- Where are saved files stored in computer – Hard disk
- What is the meaning of OSI, in terms of computers – Open System Interconnection
- What is full form of GUI in terms of computers – Graphical user Interface
- ROM is – non volatile
- Which among following is commonly used language in Android applications – JAVA
- MPG is an file extension of which type of files – Video
- Which among following is engine of computer – Processor
- If a computer provides database services to other, then it will be known as – Database Server
- Which type of switching is used in Internet – Packet
- Which is responsible for communication between Memory and ALU – Control Unit
- In computer what converts AC to DC – SMPS
- Who invented keyboard – Christoper Latham Sholes
- Which operating system is developed by Apple – Mac OS
- From which year 5th generation of computers is considered – 1980
- What is full form of HTTP – Hyper Text Transfer Protocol
- Which are the main parts of central processing unit – Control unit and Arithmetic Logic Unit
- Microsoft office is type of – Application software
- If CPU executes multiple programs simultaneously, it will be known as – Multitasking
- Which device among following is used for sending digital data over a phone line – Modern
- What is used to make computer chips – Silicon
- In which of the following form, data is stored in computer – Binary form
- Where is RAM located – Mother Board
- A wireless technology built in electronic gadgets used for exchanging data over short distances is – Bluetooth
- By pressing which key we can move to beginning of a page – Home
- Who invented Java – James Gosling
- Which of following is used in RAM – Semi Conductors
- An Assembler is used to translate a program written in – Assembly Language
- What is meaning of OMR – Optical Mark Reader
- Technology used to provide internet by transmitting data over wires of telephone network is – DSL
- Verification is process of – Authentication
- Which language was used as first generation language – Machine Language
- Which level language is Assembly Language – low-level programming language
- What is the name of first super computer of India – Param 8000
- What is LINUX – Operating System
- A 32-bit word computer can access …bytes at a time – 4
- The first microprocessor built by the Intel Corporation was called – 4004
- The computer that process both analog and digital is called – Hybrid Computer
- In 1999, the Melissa virus was a widely publicized ____________? – E-mail virus
- Which of the following commands is given to reboot the computer? – Ctrl+Alt+Del
- What is correcting errors in a program called ? – Debugging
- BCD is ____________? – Binary Coded Decimal
- What type of virus uses computer hosts to reproduce itself? – Worm
- SMTP, FTP and DNS are applications of the ____________layer? – Application
- Which command is used to select the whole document? – Ctrl+A
- COBOL is an acronym for ____________? – Common Business Oriented Language
- The ability of an OS to run more than one application at a time is called? – Multitasking
- What is the functional key to display save-as box? – F12
- Full form of NOS ? – Network Operating system
- Something which has easily understood instructions is said to be ____________? – Analog Data
- A modem is connected to a ____________? – Telephone Line
- Refresh Rate of monitor is measured in? – Hertz
- What was the chief component of first generation computer? – Vacuum tube &Valves
- Name the Father of Computer Mouse? – Douglas Engel bart
- A program that performs a useful task while simultaneously allowing destructive acts is __? – Trojan Horse
- The geometric arrangement of devices on the network is called ____________? – Topology
- The basic goal of computer process is to convert data into ____________? – Information
- Where are the CPU and memory located? – Motherboard
- Where BIOS is stored – Flash Memory Chip
- IP address version 4 is in which format – 32 bit
- Who was the Founder of Bluetooth – Ericson
- What kind of operations can a computer carry out? – Arithmetic and Logical
- Modern computers follow a generalized set of instructions to perform any function. What are these instructions better known as? – Programs
- When were the first digital electronic calculating machines developed? – during world war II
- Which of the following is the processing unit of the computer? – CPU
- Which part of the computer carries out the arithmetic and logical operations – Processing Element
- Which of the following are part of the Logical Operations of the computer – Greater Than
- Which of the following comprise the input devices – Keyboard and Mouse
- Which of the following devices comprise the output unit? – Visual Display Unit
- Which of the following lies within the CPU? – Primary Memory
- Which of the following comprise the software components of a computer? – Programs
- In a book of which author was the word computer first mentioned – Richard Braithwait
- Which of the following is seen as the earliest mechanical analog computer – Tally Stick
- Which of the following devices incorporated a mechanical calendar computer – Astrolabe
- Who gave the first successful demonstration of use of a simplified analytical engine in computing tables in 1888? – Henry Babbage
- Which of the following is the first example of an electromechanical relay computer – Z2
- Which of the following was considered as the world’s first fully automatic digital computer – Z3
- Which was the world’s first electronic digital programmable computer – Colossus
- Who had proposed the principle of modern computer in his 1936 paper – Alan Turing
- In laser printer which type of laser is used – Semiconductor laser
- In Microsoft word, ____________provides information about the current document – Status bar
- Virus stands for – Vital Information Resource Under Siege
- What is the address given to a computer connected to a network called – IP address
- A method of bypassing normal authentication procedures to a computer system is known as unauthorized access – Backdoor
- Which is a volatile memory – RAM
- Which programming language is developed by James A Gosling – Java
- Commonly used abbreviation ISP in computer science stands for – Internet Service Provider
- Which is used to enter data and instruction into a computer – Input Device
- ____________ changes each time it is installed to avoid detection by antivirus software – Polymorphic Virus
- Systems running more than one processes concurrently are called – Multi programming
- Which has the largest storing – Tera Byte
- Which is an application protocol – HTTP
- In IT, associated memory is called as – Content addressable memory
- Unix operating system was developed in 1970s by – Bell Labs
- ‘Safari’ is a type of – Browser
- Protocol used for sending an email is – SMTP
- Bold and italic formatting are example of – Text Style
- Router is used in which layer – Network Layer
- The brain of any computer system is – CPU
- Which language is used by computer to process data – Binary
- Any data or instruction entered into to memory of computer is called as – Input
- Which material is used in the manufacturing of electric heater coil – Nichrome
- Which is a light sensitive device used for converting images to their digital form – Scanner
- ‘Homepage’ is a word associated with – web page
- …Bar is located at top of wordpad/notepad – Title
- In Microsoft Word, ____________ allows us to change the color of selected text – font color
- ____________ are designed to read and interpret HTML – Browser
- Which is a modifier key in a computer keyboard – Shift Key
- In IT the technique that is used to increase the bandwidth is – Memory Inter leaving
- Which is the default body font in Microsoft Word 2007 – Calibri
- constantly running system – Program Processes are known as – Daemons
- Notepad’ is a text editor in which of the operating system – Windows
- The fundamental purpose of BIOS is – to initialize and text system hardware components
- Which output device is used for translating information from a computer into pictorial form on paper – Plotter
- The idea of the integrated circuit was first given by – Geoffrey Dummer
- The command that merges the contents of one file to another is – APPEND
- In MS word, what is a gutter margin – space left for binding
- Which company developed Java – Sun
- What is the base of the Octal Numeral System – 8
- How many layers are there in the OSI networking model – 7
- Which error is identified by the complier – Logical Errors
- Raymond Samuel Tomilson is famous for developing – Email
- C++ is a – Programming language
- Processed data is known as – Information
- Who invented logarithms – John Napier
- What is the mascot of Linux Operating System – Penguin
- What is the full form of “LAN” – Local Area Network
- How many bits does an IP address contain – 32 Bits
- Syntax Errors are determined by – Control Unit
- The tag line “Do No Evil” is owned by – Google
- Which is a main system board of a computer – Mother Board
- What is the name of the first super computer of the world – CDC 6600
- ALU is a part of a computer is – Processor
- Lisp is a programming language built by whom – John McCarthy
- In IT terminology failure in the kernel is called as – crash
- Which key is used to move to next line in a Ms-Word document – Enter-Key
- Netscape Navigator is a – web browser
- What is a bug I Computer terminology – an error in program
- In networks, a small message used to pass between one stations to another is known as – Token
- Who is known as the founder of IBM Company? – Thomas J. Watson
- An image on a computer screen is made up of ____________? – Pixels
- Full form of MAN ? – Metropolitan Area Network
- Which command in DOS can be used to recover accidentally deleted files? – UNDELETE
- A computer program that converts an entire program into machine language atone time is called__? – Characters
- In which year, the Microsoft company was founded? – 1975
- What is the personal computer operating system that organizes and uses a graphic desktop environment? – Windows
- What are Light pen and joystick ? – Input Devices
- What is a half byte also called as? – Nibble
- SMPS stands for ____________? – Switched mode Power Supply
- What do we use to change the appearance and positioning of text document in MSWord? – Formatting
- A ____________ is approximately a million bytes? – Megabyte
- Daisy wheel, Drum, chain etc are the__? – Printers
- XML stands for __? – Extensible Markup Language
- What kind of scheme is the HTTP protocol? – Request/Response
- Magnetic disk is an example of ____________? – Secondary Memory
- What is the meaning of OSI, in terms of computers ? – Open system Interconnection
- Which type of storage device is a BIOS ? – Primary
- Personal Computer is – PC
- A desktop computer is also known as – PC
- Super computer developed by Indian scientist – Param
- The third generation computer was made with – Integrated circuits
- In latest generation computers, the instructions are executed – Both Sequentially and parallel
- The person contributing the idea of the stored program was – John Neumann
- The earliest software was developed using – the waterfall model
- Inventor of C ++ is – Bjarne Stroustrup
- The first machine to successfully perform a long series of arithmetic and logical operations was – Mark – I
- Who designed the first electronic computers ENIAC – J Presper Eckert and John W Mauchy
- The third generation of the computer were in – 1965-1971
- The first generation computers had – Vacuum tubes and magnetic drum
- Artificial Intelligent is associated with which generation – Fifth
- The personal computer industry was started by – IBM
- The fifth generation computing devices, based on – artificial intelligence
- In which generation did magnetic disc started being used for storage – second generation computers
- The man who built the first mechanical calculators was – Blaise Pascal
- Computers built before the first generation of computer were – Electro–mechanical
- Punched cards were first introduced by – Herman Hollrith
- First generation computer system used – Vacuum tubes
- The father of modern computer is – Alan Turin
- Super computer developed by Indian scientists – Param
- A group of 8 bits is known as – byte
- Which is the fastest type of computer – Supercomputer
- A computer system that is old and perhaps not satisfactory is referred to as – Legacy system
- Which type of computers uses the 8-bit code called EBCDIC – Mainframe computers
- The earlier calculating devices was – Abacus
- Punch cards were first introduced by – Herman Hollerith
- Microprocessor as switching devices are for which generation computers – second generation
- Who has invented Mark – I – Howard Aiken
- Second generation computers are made of – Transistors
- Who was the father of super computers – Seymour Cray
- How many vacuum tubes was used if ENIAC – 17468
- The computer size was very large is – first generation
- What is the extension type of the excel 2007 files? – .xlsx
- Collecting personal information and effectively posing as another individual is known as the crime of ____________? – Identity theft
- The amount of vertical space between lines of text in a document is called__? – Line Spacing
- A computer cannot ‘boot’ if it does not have the ____________? – Operating system
- What is the other name for programmed chip? – LSIC
- A normal CD- ROM usually can store up to ____________data? – 680 MB
- What does DMA stand for? – Direct Memory Access
- Full form of LAN ? – Local Area Network
- ASCII stands for ____________? – American Standard Code for Information Interchange
- Second Generation computers were developed during ____________? – 1956-65
- When did arch rivals IBM and Apple Computers Inc. decide to join hands? – 1991
- What kind of memory is both static and non -volatile? – ROM
- An error in software or hardware is called a bug. What is the alternative computer jargon for it? – Glitch
- Unwanted repetitious messages, such as unsolicited bulk e-mail is known as ____________? – Spam
- The common name for the crime of stealing passwords is ____________? – Spoofing
- BIOS stands for ____________? – Basic Input Output System
- Who is regarded as Father of “C‘ programming language? – Dennis Ritchie
- RAM can be treated as the ____________ for the computer’s processor. – Waiting Room
- Computers manipulate data in many ways, and this manipulation is called ____________? – Processing
- Joshy, Perfumes are examples of ____________? – Viruses
- The ability to recover and read deleted or damaged files from a criminal’s computer is an example of a law enforcement speciality called ____________? – Computer Forensics
- Where does most data go first with in a computer memory hierarchy? – RAM
- Help Menu is available at which button? – Start
- Which file contains permanent data and gets updated during the processing of transactions? – Master File
- A DVD is an example of an ____________? – Optical Disc
- Which is most common tool used to restrict access to computer system? – Passwords
- The technology that stores only essential instructions on a microprocessor chip and thus enhances its speed is referred as ____________? – RISC
- What is the name of an application program that gathers user information and sends it to someone through the Internet? – Spybot
- Who invented Analytical engine – Charles Babbage
- Blaise Pascal has introduced – Adding Machine
- Micro programming introduced – Maurice Wilkies
- Vacuum Tube is the invention of – 1st generation
- World Computer Literacy Day is observed on – December 2
- Which type of computer is the most powerful – Supercomputer
- The first computer introduced in Nepal was – IBM 1401
- Chip is a common nickname for – Integrated Circuit
- Which company developed the microprocessor – Intel
- A megabyte is actually equal to – 1024 Kilobytes
- Office LANS, which are scattered geographically on large scale, can be connected by the use of corporate ____________? – WAN ( wide area network )
- To move a copy of file from one computer to another over a communication channel is called? – File Transfer
- Large transaction processing systems in automated organizations use ____________? – Batch Processing
- MICR stands for ____________? – Magnetic Ink Character Recognition
- Name of 1st electronic computer? – ENIAC
- No. of different characters in ASCII coding system? – 1024
- MSIC stands for ____________? – Medium Scale Integrated Circuits
- The scrambling of code is known as ____________? – Encryption
- The first computers were programmed using ____________? – Machine Language
- A fault in a computer program which prevents it from working correctly is known as__? – Bug
- Which button makes alphabets/letters in uppercase and lowercase and numbers to symbols? – Shift
- When a computer is switched on, the booting process performs ____________? – Power on self test
- What is the software frequently utilized by end users called (like Word, PowerPoint)? – Application Software
- Unit of measurement of the output quality of a printer? – Dot per sq. inch
- Switching device of fifth generation computer is ____________? – VLSI
- The unit KIPS is used to measure the speed of ____________? – Processor
- DOS stands for ____________? – Disk Operating System
- What is a joy stick primarily in computers used for? – Computer Gaming
- Which American computer company is called Big Blue – IBM
- How many bits are there in a byte – 8
- Father of ‘C’ programming language – Dennis Ritchie
- How many generations of computers we have – 5
- IBM stands for – International Business Machines
- Which is the fastest type of computer – Super Computer
- When your turn on the computer, the boot routine will perform this test – Power on self test
- Who is called the father of computer – Charles Babbage
- Who is the creator of PASCAL – Niklaus writh
- Which language is used for artificial intelligence – PROLOG
- Who is also known as father of jQuery – John Resig
- Which type of computers use the 8-bit code called EBCDIC – Mainframe Computers
- In a computer, most processing takes place in ____________? – CPU
- In which type of computer, data are represented as discrete signals? – Digital Computer
- Scientific Name of Computer? – Sillico sapiens
- What is the name of the display feature that highlights are of the screen which requires operator attention? – Reverse Video
- Computers, combine both measuring and counting, are called ____________? – Hybrid Computer
- What is FORTRAN? – Formula Translation
- What translates and executes program at run time line by line? – Interpreter
- What converts an entire program into machine language ? – Compiler
- Who is the father of personal computer? – Edward Robert
- EEPROM stands for ____________? – Electronic Erasable Programmable Read Only Memory
- Who developed the first electronic computer? – J.V. Atansoff
- Which programming languages are classified as low level languages? – Assembly Language
- The first web browser is ____________? – Mosaic
- First page of Website is termed as ____________? – Homepage
- Digital computers are classified in four categories. What are they? – Microcomputers, Mini computers, Mainframe computers and Super computers.
- In the case of Microcomputers speed of CPU is? – 1-10 MIPS
- CPU consists of – Arithmetic and Logical Unit, Register and Control Unit
- What are used to identify a user who returns to a website – Cookies
- Microsoft Internet Explorer and Netscape Navigator are example of – Internet browser programs
- In computer science, data hazard occurs when – pipeline changes the order of read/write access to operands
- Money transfer through mobile is called – IMPS
- Cache memory works on the principal of – Locality of reference
- Which device is used in network layer – Router
- Who invented the computer mouse – Douglas Engelbart
- USB is what type of storage device – Secondary
- All forms of ROM are also known as – Firmware
- The Simplest CPU scheduling algorithm is – FCFS scheduling algorithm
- The telephone line is connected through the one the computer – Modern
- In a computer system, which device is functionally opposite of a key board – Printer
- The process of writing on an optical disc is called – Burning
- The second most used language on the world wide web is – Chinese
- Which method of heat transfer – convection
- Direct access of file is also known as – random access
- What is required to boost a computer – Operating system
- What manages the computer resources – Programs
- Related to computers, what is ‘Wetware’ – Human Brain
- What uses the spawn mechanism to duplicate itself – worm
- Where is India’s super computer ‘PARAM’ located – Pune
- A translator for the assembly languages to machine language is – assembler
- The alignment of beginning and the end of lines is referred to as – Justification
- Synonyms of Internet is – Cyber Space
- Icons are – picture commands
- A bug in a program is an – error
- Where does a computer add, compare and shuffle data – CPU chip
- WINDOWS-98 is basically – on operating system
- The information in ‘EEPROM’ is erased by using – Electrical Signals
- The technology used in the electronic printer is called – Microtechnology
- What is used to identify whether a data word has an odd or even number of 1’s – Parity bit
- A computer executes programs in the sequence of – Fetch, Decode, Execute
- A Floppy Disc can store – 1.44 MB
- The rate at which scanning is repeated in a CRT is called – refresh rate
- The waste generated by end life personal computers is known as – E-Waste
- Which one is an optical disk – Super Disk
- The database in which records are organized in a tree-like structure is – Heirarchical Database
- In any spreadsheet, the address of the first cell is – AI
- What is the process of defining tables called – Data definition
- Small and cheap computers built into several home appliances are of which type – Micro computers
- What is the process of defining tables called – Index definition
- Which is an Impact printer – Daisy wheel printer
- Different computer are connected to a LAN by a cable and a – Interface card
- The monitor of a computer is – an output device
- The time between program input and output is called – Execution time
- Speed of processor chip is measured in – MHz
- ENIAC was – an electronic computer
- A place through which, data can enter or leave a computer is called – Port
- A parallel port is most often used by a – Printer
- Where was India’s first computer installed – Indian Statistical Institute Calcutta
- What helps in remote login – Telnet
- Double is a – Primitive data type
- Most of the computer available today are – 4th generation computers
- A portable, personal computer small enough to fit on your lap is called a – Notebook computer
- A computer programming language often used by children is – LOGO
- The computer memory holds data – Program
- Virus in a computer is a – Program that damages the computer software
- Alta Vista is a – Search Engine
- Where are programs and data to be used by the computer available – Storage
- The most advanced form of Read Only Memory is – EEPROM
- The indentations on CDs and DVDs are called – Pits
- CPU performance is often Measured in – GHz
- An alternate name for the completely interconnected network topology is – Mesh
- There are how many function keys present on a keyboard – 12
- Who is considered as the developer of ‘Hyper Text Markup Language’ – Tim Berners Lee
- What is the full form of COBOL – Common Business Oriented Languages
- Which generation computers used SNOBOL Language – Third generation
- Which device is used to extend the network without reducing signal strength – Repeater
- Which storage device can store maximum data – Magnetic tape
- Which language is used to access data from a database – SQL
- Which company developed “Swift” programming language – Apple
- The integrated circuits used in a computer are made up of – Silicon
- CPU scheduler is also known as – Short Term Scheduler
- Web pages are created by using which of – HTML
- Who invented Java Script the Programming Language – Brenden Eich
- Which one is used as secondary storage system in computer – Floppy
- The UNIX Operating system is suitable for – Multi user
- What is file extension of Window Installer Package – .msi
- Which among following is associated with monitor – CRT
- Assembler work in – two phases
- Range of colors depends on – Number of bits associated with each pixel
- In which condition resource is not removed from a process holding – Non preemption
- The operation is specified by a binary code known as the – Opcode
- Laser printer is a type of – Non impact printing
- One way to convert from decimal to hexadecimal is the – Hex dabble method
- Output devices are commonly referred as – Terminals
- A stack in a digital computer is a part of the – Memory Unit
- How do you switch between programs – Alt + tab
- What is the shortcut key you can press to create a copyright symbol? – Alt + ctrl + C
- Unwanted and unsolicited e- mails are called – Spam
- The two major types of computer chips are – Microprocessor chip
- DSL is an example of a ____________ connection. – Broadband
- Top 30 Linux Questions (MCQs) with Answers and Explanations
- 75 Important Cybersecurity Questions (MCQs with Answers)
- 260 One-Liner Information Security Questions and Answers for Fast Learning
- Top 20 HTML5 Interview Questions with Answers
- 80 Most Important Network Fundamentals Questions With Answers
- 100 Most Important SOC Analyst Interview Questions
- Top 40 Cyber Security Questions and Answers
- Top 10 React JS Interview Theory Questions and Answers
- CISSP – Practice Test Questions – 2024 – Set 20 (53 Questions)
- Part 2: Exploring Deeper into CCNA – Wireless (145 Practice Test Questions)