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What is the protocol used for transferring files over the internet?
What is the protocol used for transferring files over the internet?
What is the primary function of the Internet Architecture?
What is the primary function of the Internet Architecture?
What is the full form of ISDN?
What is the full form of ISDN?
What is the primary function of the World Wide Web?
What is the primary function of the World Wide Web?
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What is the protocol used for sending emails over the internet?
What is the protocol used for sending emails over the internet?
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What is the full form of URL?
What is the full form of URL?
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What is the purpose of a web browser?
What is the purpose of a web browser?
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What is the full form of IRC?
What is the full form of IRC?
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What is the primary function of a Dial-up connection?
What is the primary function of a Dial-up connection?
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What is the purpose of an Internet Search Engine?
What is the purpose of an Internet Search Engine?
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What is the main topic of Chapter 15?
What is the main topic of Chapter 15?
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What is the main component of the MS-Word screen?
What is the main component of the MS-Word screen?
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What is the purpose of the Scandisk?
What is the purpose of the Scandisk?
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What is the main topic of Chapter 17?
What is the main topic of Chapter 17?
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What is the purpose of the Recycle Bin?
What is the purpose of the Recycle Bin?
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What is the main component of the MS-Excel screen?
What is the main component of the MS-Excel screen?
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What is the purpose of the Search feature in Windows XP?
What is the purpose of the Search feature in Windows XP?
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What is the main topic of Chapter 19?
What is the main topic of Chapter 19?
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What is the purpose of the Window Explorer in Windows XP?
What is the purpose of the Window Explorer in Windows XP?
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What is the main topic of Chapter 16?
What is the main topic of Chapter 16?
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What is the primary function of an input unit?
What is the primary function of an input unit?
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Which type of input device is used to enter data into a computer using handwriting?
Which type of input device is used to enter data into a computer using handwriting?
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What is the purpose of an optical mark recognition (OMR) device?
What is the purpose of an optical mark recognition (OMR) device?
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Which type of output device is used to display information on a screen?
Which type of output device is used to display information on a screen?
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What is the purpose of a trackball?
What is the purpose of a trackball?
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Which type of input device is used to enter audio data into a computer?
Which type of input device is used to enter audio data into a computer?
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What is the purpose of a joystick?
What is the purpose of a joystick?
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Which type of output device is used to print data on a paper?
Which type of output device is used to print data on a paper?
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What is the purpose of a barcode reader?
What is the purpose of a barcode reader?
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Which type of input device is used to enter data into a computer using a light-sensitive device?
Which type of input device is used to enter data into a computer using a light-sensitive device?
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Who encouraged the author to write a book?
Who encouraged the author to write a book?
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How long did it take the author to write this book?
How long did it take the author to write this book?
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Who helped the author in clicking photographs for the book?
Who helped the author in clicking photographs for the book?
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What was the role of Sachin Saxena in the writing of the book?
What was the role of Sachin Saxena in the writing of the book?
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Who did the author thank for their motivation and cooperation?
Who did the author thank for their motivation and cooperation?
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Who inspired the author to write a good book?
Who inspired the author to write a good book?
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Who did the author thank for their valuable advice?
Who did the author thank for their valuable advice?
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Who did the author thank for their love and support?
Who did the author thank for their love and support?
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What is the primary characteristic of a computer?
What is the primary characteristic of a computer?
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What is the classification of a desktop computer?
What is the classification of a desktop computer?
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What is the purpose of the central processing unit?
What is the purpose of the central processing unit?
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Who is credited with the development of the analytical engine?
Who is credited with the development of the analytical engine?
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What is the characteristic of fourth generation computers?
What is the characteristic of fourth generation computers?
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What is the input-process-output concept?
What is the input-process-output concept?
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What is the application of computers in the field of education?
What is the application of computers in the field of education?
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What is the significance of the fifth generation of computers?
What is the significance of the fifth generation of computers?
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Study Notes
Input and Output Devices
- Input devices allow users to enter data into a computer system
- Examples of input devices include:
- Keyboard
- Pointing devices (mouse, trackball, joystick, digitizing tablet)
- Pick devices (light pen, touch screen)
- Source data entry devices (audio input device, video input device, optical input devices)
Source Data Entry Devices
- Audio input device: captures sound or voice inputs
- Video input device: captures video inputs
- Optical input devices:
- Scanner: reads printed or written text and images
- Optical Character Recognition (OCR): recognizes and extracts text from images
- Magnetic Ink Character Recognition (MICR): recognizes and extracts text from magnetic ink characters
- Optical Mark Recognition (OMR): recognizes and extracts data from marked forms
- Barcode reader: reads and extracts data from barcodes
Output Devices
- Hard copy devices:
- Printer: prints text and images on paper
- Plotter: prints large-format documents and images
- Computer output on microfilm: stores data on microfilm
- Soft copy devices:
- Monitor: displays text and images on a screen
- Visual Display Terminal: displays text and images on a screen
- Video output: displays video outputs
- Audio response: outputs audio responses
Internet and Internet Services
- Introduction to the Internet:
- History of the Internet
- Internetworking protocol
- Internet architecture
- Connecting to the Internet:
- Dial-up access
- Leased line
- Integrated Services Digital Network (ISDN)
- Digital Subscriber Line (DSL)
- Cable modem
- Internet services:
- World Wide Web (WWW):
- Web browser
- Uniform Resource Locator (URL)
- Internet search engines
- WWW development languages
- Electronic mail (Email):
- Email address
- Email message format
- Email services
- How email works
- File Transfer Protocol (FTP):
- How FTP works
- Terminal Network (Telnet)
- News
- Internet Relay Chat (IRC)
- World Wide Web (WWW):
Windows XP
- Features of Windows XP:
- The desktop
- The start menu
- The window
- The view
- Selecting files
- Working with folders
- Files and folders properties
- Windows XP explorer:
- The start menu
- The window
- The view
- Selecting files
- Working with folders
- Files and folders properties
- Configuring Windows XP:
- Configuring the screen
- Configuring the mouse
- Adding or removing programs
- Adding new hardware
- System tools
- The scandisk
- Windows XP media player
- Windows XP help
Word 2007
- Introduction to Word 2007:
- Starting MS-Word
- MS-Word screen and its components
- The Office button:
- The home tab
- The insert tab
- The page layout tab
- The references tab
- The mailings tab
- The review tab
- The view tab
- The help
- Solved examples:
- Exercises
MS-Excel 2007
- Introduction to MS-Excel 2007:
- Starting MS-Excel
- Basics of spreadsheet
- MS-Excel screen and its components
- The Office button:
- The home tab
- The insert tab
- The page layout tab
- The formulas tab
- The data tab
- The review tab
- The view tab
- The help
- Solved examples:
- Exercises
MS-PowerPoint 2007
- Introduction to MS-PowerPoint 2007:
- Starting MS-PowerPoint
- Basics of PowerPoint
- MS-PowerPoint screen and its components:
- The office button
- The home tab
- The insert tab
- The design tab
- The animations tab
- The slide show tab
- The review tab
- The view tab
- The help
- An example:
- Exercises
MS-Access 2007
-
Introduction to MS-Access 2007:
- Starting MS-Access
- Database terminology
-
MS-Access screen and its components:
- The office button
- The home tab
- The create tab
- The external data tab
- The database tools tab
- The help
-
Solved examples:
- Exercises### Introduction to Computer
-
Digital and analog computers are two types of computers.
-
Characteristics of computers include:
- Speed
- Accuracy
- Diligence
- Storage capability
- Versatility
History of Computer
- Calculating machines were the first computers.
- Napier's bones, slide rule, and Rascal's adding and subtraction machine were early calculating machines.
- Leibniz's multiplication and dividing machine was another early computer.
- Punch card system was used in early computers.
- Babbage's analytical engine and Hollerith's punched card tabulating machine were significant inventions.
Classification of Computers
- Microcomputers:
- Desktop computer or Personal Computer (PC)
- Notebook computers or laptop
- Netbook
- Tablet computer
- Handheld computer or Personal Digital Assistant (PDA)
- Smart phones
- Minicomputers
- Mainframe computers
- Supercomputers
Generations of Computer
- First generation (1940 to 1956): Used vacuum tubes.
- Second generation (1956 to 1963): Used transistors.
- Third generation (1964 to 1971): Used integrated circuits.
- Fourth generation (1971 to present): Used microprocessors.
- Fifth generation (present and next): Uses artificial intelligence.
Computer System
- Hardware
- Software
- Data
- Users
Input-Process-Output Concept
- Input unit
- Processing unit
- Output unit
Components of Computer Hardware
- Input/output unit
- Central processing unit
- Storage unit
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Description
Learn about the different types of input devices that allow users to enter data into a computer system, including keyboards, pointing devices, and source data entry devices.