COMPUTER ABCD

COMPUTER GK

CLASS-9

1. BIT - It is basic unit of computers. It has two values 1 & 0 only.

2. BYTE - Combination of  8 Bits.

3. Bug - A software bug is an error.

4. Antivirus software - A program designed to look for and destroy viruses that may infect the memory of a computer or files stored on a computer.

4. Crash - Your computer or application no longer works Correctly.

5. Google – Search engine on the web.

6. GUI - Graphical User Interface uses icons and menus to carry out commands such as opening files, delete files, move files etc..

7. Hard copy - Text or graphics printed on paper; also called a printout.

8. Offline – Compute/Device is not connected to the Internet.

9. Online – Computer/ Device connected to the Internet.

10. Soft copy - Information shown on the display screen.

11. Sort - To arrange the data in ascending and descending order.

12. Port - An electrical connection on the computer into which a cable can be plugged.

13. Protocol - A set of rules over the Network.

14. Trash - Place where you put files and folders that you want to delete.

15. Touchpad - The device on a laptop computer that takes the place of a mouse.

16. Viral- If an online video, photo or article "goes viral", it experiences a sudden spike in popularity in a short period of time.

17. Zip- Compress multiple files into one small size file. It's a handy way to make files smaller before sending them via email.

18. Spam-Spam refers to unwanted email/messages sent for marketing purposes.

19. Resolution-Resolution refers to the number of pixels that make up the display on a monitor screen.

20. Compression-Compression reduces the size of a file.

Computer Question - Answer

1. "The fathers of the Internet" is
Ans : Vint Cerf

 2. The inventor of the World Wide Web?
Ans : Tim Berners-Lee  

 3.In internet terminology IP means
Ans:Internet Protocol

 4. The first page of a website is called the
Ans : Home page

 5. Which  company is nicknamed  "Big Blue" ?
Ans : IBM(International Business Machines Corporation)

6. Which day is celebrated as world Computer Literacy Day?
Ans : December 2

7. Name the software program which is used to view Web Pages?

Ans: Browser

8. Error in programs is also called?

Ans: Bug

9. What is the full form of PDF?

Ans: Portable Document Format

10. Image in the computer screen is made up of?

Ans: Pixel

11. What is the full form of USB?

Ans: Universal Serial Bus

12. IC chips used in computers are usually made of?

Ans: Silicon

13. Which device is used to connect computer to the internet is called?

Ans: Modem (Modulator-Demodulator)

14. In which form data is store in computer?

Ans: Binary (0,1)

15. What is the full form of virus?

Ans: Vital Information Resource Under Seize

16. What is Hard Copy?

Ans: The printed Output Document

17. What do you call a portable computer?

Ans: Laptop

18. What is Google?

Ans: Search Engine

19. What is Google Chrome?

Ans: Internet Browser

20. Who is the founder of Microsoft?

Ans: Bill Gates

1. Who is called brain of computer?

Ans: CPU

2. Who is known as father of computer?

Ans: Charles Babbage

3. What is the full form of RAM?

Ans: RAM-Random Access Memory

4. Full form of CPU?

Ans: CPU- Central Processing Unit

5. Which device is used to take print on paper?

Ans: Printer

6. Which device looks like a TV?

Ans: Monitor

7. Which device is used to type your name in computer?

Ans: Keyboard

8. Which device is used to draw picture in paint?

Ans: Mouse

9. Which device is used to give power to the computer after power off?

Ans: UPS

10. Which device is used to show movie on big wall?

Ans: Projector

11. Which device is used to record your voice?

Ans: Microphone

12. Which device is used to take picture?

Ans: Camera

13. Which is the longest key on keyboard?

Ans: Space Bar

14. Which button on mouse help us to move up and down?

Ans: Scroll Button

15. The small pictures on computer screen is called?

Ans: Icons

16. The printed copy on paper is called?

Ans: Hard Copy

17. The full form of CU?

Ans: CU-Control Unit

18. The full form of CD?

Ans: CD- Compact Disc

19. Which is the first super computer of India?

Ans: PARAM

20. The full form of ALU?

Ans: ALU- Arithmetic and Logical Unit

CLASS-8

1. What is Computer Network?

Ans: A computer network is a collection of computer and other resources like printer, scanner etc. connected together so that they can communicate with each other.

2. What is Workstation?

Ans: The computer that is connected to a network is called Workstation.

3. What is Stand Alone PC?

Ans: A computer that is not connected to the network is called Stand Alone PC.

4. What is MODEM?

Ans: Device that converts analog signal to digital signal and digital signal to analog signal is called MODEM. (MODEM:Modulator-Demodulator)

5. Which cable is used by cable TV industry?

Ans: Coaxial Cable

6. What is Operating System?

Ans: Operating system is a program which provides interface between user and hardware.

7. Name different types of operating system?

Ans: Windows, Linux, Unix, Android

8. What is Internet?

Ans: The Internet is a global wide area network that connects computer systems across the world.

9. Write the full form of PAN.

Ans: PAN- Personal Area Network

10. Write the full form of WAN.

Ans: WAN- Wide Area Network

11. Write the full form of VIRUS.

Ans:VIRUS- Vital Information Resources Under Seize

12. What is Spreadsheet/Worksheet?

Ans: A spreadsheet or worksheet is a file made of rows and columns that help sort data, arrange data easily, and calculate numerical data.

13. What is Range?

Ans: A range is a group of consecutive cells in a worksheet that have been selected or highlighted.

14. What are Functions?

Ans: Functions are predefined formulas that perform calculations.

15. What is Active Cell?

Ans: A cell which is currently selected.

16. Name different types of functions used in Excel?

Ans: Sum, Count, Max, Min, Average

17. Write the full form of HTML.

Ans: HTML- Hyper Text Markup Language

18. Write the name of cables used in Computer Network.

Ans: Fibre Optics, Coaxial Cable, Twisted Pair

19. Write the name of some devices used in Computer Network.

Ans: Modem, Hub, Switch, Bridge, Gateway, Router

20. Which device works like a traffic policeman?

Ans: Router-It directs network traffic.

CLASS-7

1. What is Hardware?

Ans: Hardware consists of all the parts that we can touch.Ex-Keyboard Mouse.

2. What is Software?

Ans: Software is a set of programs.

3. What is Program?

Ans: Program is a set of instructions that tells the computer to perform tasks.

4. Name different types of Software.

Ans: Application software, System Software, Utility software.

5. Name some Application software.

Ans: MS Word, MS Excel, PowerPoint, MS Paint etc.

6. What is Operating System?

Ans: Operating system is a program which provides interface between user and hardware.

7. Name different types of operating system.

Ans: Windows, Linux, Unix, Android

8. Name some programming language.

Ans: BASIC, C, C++, JAVA, HTML, LOGO etc.

9. Name some utility software.

Ans: Antivirus program, Screen Saver, Disk Cleanup Program, Disk Defragmenter etc.

10. What is Interpreter?

Ans: Interpreter takes one instruction at a time, translates it and moves on the next statement in the program.

*Computer Virus*

11. Write the full form of VIRUS.

Ans:VIRUS- Vital Information Resources Under Seize

12. What is Computer Virus?

Ans: A computer virus is a piece of software that can  infect a computer, install itself and copy itself to other computers, without the users permission.

13. Name different types of computer viruses.

Ans: Malware, Trojan horse, Worm, Spyware, Adware etc.

14. What was the name of first computer virus?

Ans: Creeper

15. Microsoft Word is an example of-

Ans: Application Software

*MS EXCEL*

16. What is Spreadsheet/Worksheet?

Ans: A spreadsheet or worksheet is a file made of rows and columns that help sort data, arrange data easily, and calculate numerical data.

17. The file responsible for starting MS Excel is-

Ans: Excel.exe

18. What are Functions?

Ans: Functions are predefined formulas that perform calculations.

19. What is Active Cell?

Ans: A cell which is currently selected.

20. Name different types of functions used in Excel?

Ans: Sum, Count, Max, Min, Average

CLASS-6

1. Write the full form of PC.

Ans: PC- Personal Computer

2. Name different types of computer (Basis of operation).

Ans: Analog computer, Digital Computer, Hybrid Computer

3. Name different types of computer (Basis of size and performance).

Ans: Micro computer, Mini Computer, Mainframe Computer, Super Computer

4. Name the computer that can be moved from one place to another place easily.

Ans: Laptop Computer

5. Micro Computer is also known as-

Ans: Personal Computer

6. Which port is used to connect laptop to the TV?

Ans: HDMI Port

7. Which port is used to connect Pen Drive to the TV?

Ans: USB Port

8. Write the full form of USB.

Ans: USB- Universal Serial Bus

9. Pen Drive is also Known as-

Ans: Flash Drive

10. What is Volatile Memory?

Ans: Volatile memory is a type of storage whose contents are erased when the computer is switched off. Ex - RAM

HTML LEARN

Computer GK

Computer GK Basic Knowledge

1. The term GIGO related to- Accuracy
2. The basic architecture of computer was developed by- John Von Neuman
3. The process of data arranging in sequence is called- Sorting
4. FORTRAN is called- Formula Translator 
5. In operating system, round robing scheduling means- A kind of scheduling 
6. Breaking physical memory into fixed sized blocks called as- Frames
7. Which type of switching is used in Internet- Packet
8. All form of ROM is known as- Firmware
9. USB__type of storage- Secondary/Auxiliary/External Memory
10. The term URL used in Internet technology stands for- Uniform Resource Locator
11. ROM stands for- Read Only Memory 
12. A computer executes programs in the sequence of- Fetch, Decode, Execute
13. The technology use in the electronic printer is called- Micro Encapsulation
14. Rearranging and allocation space in memory to provide for multiple computing tasks is called- Memory Management
15. Which is used to identify whether a data word has an odd or even number of 1’s- Parity Bit
16. DTP stands for- Desktop Publishing
17. RAM is used as a short memory in a computer because it- Is Volatile
18. Which application is used for accessing the information on internet- Web Browser 
19. In the field of Internet WWW stands for- World Wide Web
20. Fifth generation computers are- Knowledge Processors
21. The section of CPU that selects interprets and monitors the execution of program in instruction is- Control Unit
22. The time between program input and output is called- Turn around time
23. The popular search engine GOOGLE derives its name from the word ‘Googol’, what does the word mean- The numeral one followed by a hundred zeros.
24. What is the full form of ALU- Arithmetic Logic Unit
25. Telnet stands for- Telephone Network 

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Computer notes

Data: Raw facts and figures, like numbers, text are called data.

Information: The meaning way data is called information.

Instruction: It is a command given to computer.

Program: The set of instruction given to a computer to perform a task is called program.

Software: The set of program is called software. Ex- addition, subtraction and multiplication makes software of calculator.

Input: Data or information given to the computer is called input.

Output: The result of computer is called output.

MS WORDà

Microsoft Word is a word processor developed by Microsoft.

It is used for creating, editing, formatting, storing, retrieving and printing of a text document.

Microsoft Word's file formats are denoted either by a .doc or .docx file extension.

Cursor : A cursor is an indicator used to show the position on a computer monitor.

Save : Save is used for saving current editing.

Save as : Save as is used to save a document for the first time. It is also used to change the location of the saved file in the computer.

Print Preview : Print Preview is used to see the document before the printout is taken.

Cut and Paste : Cut and Paste options are used to move the data from one part of the document to another.

Copy and Paste : Copy and Paste options are used to make duplicate copy of data from one part of the document to another.

Title Bar: The bar at the top of the window that have the name of the window, is known as Title Bar.

Header and Footer : Header and Footer option is used to display information such as title and page number of the document.

Header is located at the top and Footer is located at bottom of the page.

Status Bar: A horizontal bar at bottom that shows page number, words, zoom option.

Microsoft Excelà

Microsoft Excel is a spreadsheet application developed by

Microsoft.

Microsoft Excel's native file formats are denoted either by a .xls or .xlsx file extension.

Workbook: A Microsoft office document that contains one or more

Worksheets/ Spreadsheets is known as a Workbook.

MS Excel have 3 worksheet by default.

ROW: 1,048,576

COLUMN: 16,384

Cell: The intersection of a row and column is called a Cell.

Active Cell: The cell in which we are currently working is known as Active Cell.

Cell Address: The letter and number of the intersecting column and row is the Cell Address.

Microsoft PowerPointà

Microsoft PowerPoint is a slide show presentation program developed by Microsoft.

Filename extension: .ppt, .pptx

Computer shortcut Keys

Shortcut Key:

CTRL  +  A = SELECT ALL

CTRL  +  B = BOLD

CTRL  +  C = COPY

CTRL  +  D = Open FONT Dialog

CTRL  +  E = CENTER ALIGNMENT

CTRL  +  F = FIND

CTRL  +  G = GO TO

CTRL  +  H = REPLACE

CTRL  +  I = ITALIC

CTRL  +  J = JUSTIFIED

CTRL  +  K = HYPERLINK

CTRL  +  L = LEFT ALIGNMENT

CTRL  +  N = NEW FILE

CTRL  +  O = OPEN

CTRL  +  P = PRINT

CTRL  +  R = RIGHT ALIGNMENT

CTRL  +  S = SAVE

CTRL  +  U = UNDERLINE

CTRL  +  V = PASTE

CTRL  +  X = CUT

CTRL  +  Y = REDO

CTRL  +  Z = UNDO

Computer full form learn

Computer Full Form:

COMPUTER – Commonly Operated Machine Particularly Used for Technology Education and Research

BIOS - Basic input Output System

URL - Uniform Resource Locator

CMOS  - Complementary Metal Oxide Semi-

Conductor

SMTP - Simple Mail Transfer Protocol

HTTP - Hyper Text Transfer Protocol

HTML – Hyper Text Markup Language

ARP - Address Resolution Protocol

IP - Internet Protocol

DHCP - Dynamic Host Configuration Protocol

GIF - Graphics Interchange Format

CDMA  - Code Division Multiple Access

GSM - Global System for Mobile Communication

GPS - Global Positioning System

GUI - Graphical User Interface

CUI – Command User Interface

HDMI High Definition Multimedia Interface

HDD Hard Disc Drive

NIC - Network Interface Card

HDTV  - High Definition Television

ISP - Internet Service Provider

JPEG - Joint Picture Expert Group

CRT Cathode Ray Tube

LCD - Liquid Crystal Display

LED -  Light Emitting Diode

DSL - Digital Subscriber Line

MAC - Media Access Control

LAN – Local Area Network

WAN- Wide Area Network

CAN - Campus Area Network

PAN - Personal Area Network

IPV4 - Internet Protocol Version 4

IPV6  - Internet Protocol Version 6

DBMS - Data Base Management System

MODEM - Modulator Demodulator

RAM - Random Access Memory

ROM - Read Only Memory

SMPS - Switch Mode Power Supply

OMR - Optical Mark Reader

OCR - Optical Character Reader

BCR - Bar Code Reader

MICR - Magnetic Ink Character Reader

SRAM - Static RAM

DRAM - Dynamic RAM

PROM - Programmable ROM

EPROM - Erasable Programmable ROM(UV-UltraViolet Rays)

EEPROM - Electrically Erasable Programmable ROM

CD - Compact Disc

DVD - Digital Video/Versatile Disc

BRD - Blu Ray Disc

ALU- Arithmetic logical unit

CPU- Central Processing Unit

PDF - Portable Document Format

USB - Universal Serial Bus

VIRUS - Vital Information Resource Under Siege

WIFI - Wireless fidelity

ARPANET - Advanced Research Projects Agency

Network

SQL - Structured Query Language

XML : Extensible Markup Language   

WWW : World Wide Web 

CEO : Chief Executive Officer 

Computer shortcut keys notes

Computer class 6

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