Computer Science | Class 11

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    Chapter 1 Basic Concept of Information technology ( 44 videos)  (Practice Test)

      1.1: Introduction to Computer
      What is Computer
    1. What is Computer
      7223 views
      2. Difference Between Data And Information
    2. Difference Between Data And Information
      617 views
      3. Capabilities Of Computer
    3. Capabilities Of Computer
      941 views
      1.2: Generations of Computer (Practice Test)
      Generations Of Computer: An Overview
    1. Generations Of Computer: An Overview
      1405 views
      2. 1St Generation Of Computer
    2. 1St Generation Of Computer
      1844 views
      3. 2Nd Generation Of Computer
    3. 2Nd Generation Of Computer
      1986 views
      4. 3Rd Generation Of Computer
    4. 3Rd Generation Of Computer
      1387 views
      5. 4Th Generation Of Computer
    5. 4Th Generation Of Computer
      1977 views
      6. 5Th Generation Of Computer
    6. 5Th Generation Of Computer
      2518 views
      7. More On 5Th Generation Of Computer
    7. More On 5Th Generation Of Computer
      1.3: Impact of Computer in our daily life
      Effects Of Computer On Society : Positive Aspects
    1. Effects Of Computer On Society : Positive Aspects
      2322 views
      2. Effects Of Internet On Society: Positive Aspects
    2. Effects Of Internet On Society: Positive Aspects
      1616 views
      1.4: Types of Computer
      Types Of Computer W.R.T Working
    1. Types Of Computer W.R.T Working
      1277 views
      2. Types Of Computer W.R.T Size, Speed And Efficiency
    2. Types Of Computer W.R.T Size, Speed And Efficiency
      1293 views
      3. Types Of Computer W.R.T Purpose
    3. Types Of Computer W.R.T Purpose
      225 views
      1.5: Computer System
      Computer System And Its Components
    1. Computer System And Its Components
      3240 views
      1.6: Computer Hardware (Practice Test)
      What Is Computer Hardware
    1. What Is Computer Hardware
      1255 views
      2. Peripherals
    2. Peripherals
      1921 views
      3. Microprocessor
    3. Microprocessor
      582 views
      4. Storage Hardware: Memory
    4. Storage Hardware: Memory
      622 views
      5. Networking Hardware
    5. Networking Hardware
      389 views
      1.7: Input devices (Practice Test)
      Keyboard
    1. Keyboard
      473 views
      2. Mouse
    2. Mouse
      282 views
      3. Track Ball
    3. Track Ball
      459 views
      4. Microphone
    4. Microphone
      178 views
      5. Barcode And Qr Readers
    5. Barcode And Qr Readers
      126 views
      6. Scanners And Its Types
    6. Scanners And Its Types
      242 views
      7. Digital Camera
    7. Digital Camera
      215 views
      1.8: Output devices (Practice Test)
      Monitors
    1. Monitors
      366 views
      2. Types Of Monitors: Crt Monitor
    2. Types Of Monitors: Crt Monitor
      334 views
      3. Screen Resolution
    3. Screen Resolution
      125 views
      4. Video Input Devices
    4. Video Input Devices
      19 views
      5. Video Display Adapters
    5. Video Display Adapters
      27 views
      6. Types Of Expansion Cards
    6. Types Of Expansion Cards
      2761 views
      7. Printers And Its Types
    7. Printers And Its Types
      758 views
      8. Plotter
    8. Plotter
      287 views
      1.9: Number System
      Introduction To Number System
    1. Introduction To Number System
      384 views
      2. Coding Scheme
    2. Coding Scheme
      372 views
      1.10: Software
      What Is Software
    1. What Is Software
      1282 views
      2. More On Software
    2. More On Software
      283 views
      3. Types Of Software
    3. Types Of Software
      1769 views
      4. Software Terminologies
    4. Software Terminologies
      846 views
      1.11: Information System
      Introduction To System Development Life Cycle ( Sdlc)
    1. Introduction To System Development Life Cycle ( Sdlc)
      835 views
      2. Hardware vs Software
    2. Hardware vs Software
      847 views

    Chapter 2 Computer Network ( 29 videos)  (Practice Test)

      2.1: Computer Network
      What Is Computer Network
    1. What Is Computer Network
      1414 views
      2. Uses Of Network
    2. Uses Of Network
      24 views
      3. Advantages And Disadvantages Of Network
    3. Advantages And Disadvantages Of Network
      2823 views
      2.2: Types of Network
      Difference Between Client And Server
    1. Difference Between Client And Server
      5494 views
      2. Client-Server Network
    2. Client-Server Network
      10788 views
      3. Peer-To-Peer Network
    3. Peer-To-Peer Network
      895 views
      4. Types Of Networking W.R.T Area: Lan, Wan, Man
    4. Types Of Networking W.R.T Area: Lan, Wan, Man
      367 views
      2.3: Networking Software
      Networking Software
    1. Networking Software
      2 views
      2. Work Group And Group Ware
    2. Work Group And Group Ware
      21 views
      2.4: Network Topology
      What Is Network Topology
    1. What Is Network Topology
      609 views
      2. Network Topologies: Advantages And Disadvantages
    2. Network Topologies: Advantages And Disadvantages
      380 views
      3. More on Network Topologies: Advantages And Disadvantages
    3. More on Network Topologies: Advantages And Disadvantages
      202 views
      2.5: Open System Interconnection (Practice Test)
      What Is OSI Model: Overview
    1. What Is OSI Model: Overview
      272 views
      2. Physical Layer
    2. Physical Layer
      122 views
      3. Data Link Layer
    3. Data Link Layer
      123 views
      4. Network Layer
    4. Network Layer
      122 views
      5. Transport Layer
    5. Transport Layer
      115 views
      6. Session Layer
    6. Session Layer
      96 views
      7. Presentation Layer
    7. Presentation Layer
      101 views
      8. Application Layer
    8. Application Layer
      156 views
      9. Seven Layers Of Osi Model
    9. Seven Layers Of Osi Model
      152 views
      10. More On Osi Model
    10. More On Osi Model
      80 views
      2.6: Protocols (Practice Test)
      Network Standards
    1. Network Standards
      30 views
      2. Elements Of Network Protocols/X.25 Protocol
    2. Elements Of Network Protocols/X.25 Protocol
      3. Transmission Control Protocol / Internet Protocol
    3. Transmission Control Protocol / Internet Protocol
      112 views
      2.7: Switching
      What Is Network Switching
    1. What Is Network Switching
      41 views
      2. Circuit Switching
    2. Circuit Switching
      139 views
      3. Message Switching
    3. Message Switching
      27 views
      4. Packet Switching
    4. Packet Switching
      153 views

    Chapter 3 Data Communication ( 26 videos)  (Practice Test)

      3.1: Introduction to Data Communication
      What Is Data Communication
    1. What Is Data Communication
      560 views
      2. Data Communication Terminologies
    2. Data Communication Terminologies
      892 views
      3. Components Of Communication System
    3. Components Of Communication System
      224 views
      3.2: Data Communication Modes
      Transmission Modes Of Computer Network
    1. Transmission Modes Of Computer Network
      397 views
      3.3: Communication Media (Practice Test)
      Telephone Lines
    1. Telephone Lines
      33 views
      2. Co-Axial Cable
    2. Co-Axial Cable
      308 views
      3. Stp: Ethernet: Twisted Pair Cable
    3. Stp: Ethernet: Twisted Pair Cable
      797 views
      4. Optical Fibers
    4. Optical Fibers
      566 views
      5. Wireless Media: Microwave Transmission
    5. Wireless Media: Microwave Transmission
      407 views
      6. Satellite Communication
    6. Satellite Communication
      391 views
      7. Wireless Media: Radio Waves And Infrared
    7. Wireless Media: Radio Waves And Infrared
      584 views
      8. Bluetooth Network
    8. Bluetooth Network
      150 views
      9. Comparison Of Fiber Optics, Twisted Pair Cables And Coaxial Cable
    9. Comparison Of Fiber Optics, Twisted Pair Cables And Coaxial Cable
      3.4: Communication Speed
      What Is Bandwidth
    1. What Is Bandwidth
      4010 views
      2. Data Rate, Baud Rate
    2. Data Rate, Baud Rate
      2686 views
      3. Baseband
    3. Baseband
      25 views
      3.5: Factors affecting Communication
      How Noise Affect Communication Quality: Cross Talk
    1. How Noise Affect Communication Quality: Cross Talk
      693 views
      2. Attenuation And Distortions
    2. Attenuation And Distortions
      824 views
      3.6: Networking Hardware (Practice Test)
      Networking Hardware
    1. Networking Hardware
      389 views
      2. Router
    2. Router
      294 views
      3. Gateway
    3. Gateway
      955 views
      4. Network Interface Card
    4. Network Interface Card
      920 views
      5. Dial-Up Modem
    5. Dial-Up Modem
      3393 views
      3.7: Modulation and Demodulation
      Analog Modulations Techniques
    1. Analog Modulations Techniques
      3.8: Encoding
      Asynchronous Transmission
    1. Asynchronous Transmission
      368 views
      2. Comparison Between Synchronous And Asynchronous
    2. Comparison Between Synchronous And Asynchronous
      229 views

    Chapter 4 Uses of Computer ( 9 videos)

      4.1: Use of Computers (Practice Test)
      Applications Of Computers In Education
    1. Applications Of Computers In Education
      7497 views
      2. Applications Of Computers In Business
    2. Applications Of Computers In Business
      550 views
      3. Ict Applications In Data Handling, Banking And Microprocessor Controlled Applications
    3. Ict Applications In Data Handling, Banking And Microprocessor Control
      4. Use Of Computers In Medical
    4. Use Of Computers In Medical
      28 views
      5. Word Processor
    5. Word Processor
      24 views
      6. Computer Aided Designs
    6. Computer Aided Designs
      624 views
      7. Computer Aided Manufacturing
    7. Computer Aided Manufacturing
      27 views
      8. 3D And Holographic Imaging And Virtual Reality
    8. 3D And Holographic Imaging And Virtual Reality
      9. Weather Forecasting
    9. Weather Forecasting
      10 views

    Chapter 5 Computer Architecture ( 47 videos)  (Practice Test)

      5.1: Computer Languages (Practice Test)
      Programming Languages: An Overview
    1. Programming Languages: An Overview
      1084 views
      2. Machine Language
    2. Machine Language
      796 views
      3. Assembly Language
    3. Assembly Language
      606 views
      4. High Level Language
    4. High Level Language
      330 views
      5. Characteristics Of High Level Languages
    5. Characteristics Of High Level Languages
      1061 views
      5.2: Language Translators/Processors
      Language Translators: An Overview
    1. Language Translators: An Overview
      583 views
      5.3: Information Processing Cycle
      Basic Operations Of Computer
    1. Basic Operations Of Computer
      3925 views
      5.4: Computer Architecture
      Central Processing Unit: Alu, Control Unit
    1. Central Processing Unit: Alu, Control Unit
      5332 views
      2. Cpu Clock And Co-Processor
    2. Cpu Clock And Co-Processor
      17 views
      5.5: Memory (Practice Test)
      Computer Memory : Why It Is Necessary For Computer
    1. Computer Memory : Why It Is Necessary For Computer
      562 views
      2. Memory Operations
    2. Memory Operations
      38 views
      3. Memory Terminologies
    3. Memory Terminologies
      651 views
      4. Difference Between Volatile And Non-Volatile Memory
    4. Difference Between Volatile And Non-Volatile Memory
      1721 views
      5. Units Of Computer Memory
    5. Units Of Computer Memory
      600 views
      6. Examples On Unit Conversion
    6. Examples On Unit Conversion
      84 views
      7. Memory Characteristics
    7. Memory Characteristics
      1199 views
      8. Main Memory
    8. Main Memory
      9. Ram: Random Access Memory
    9. Ram: Random Access Memory
      691 views
      10. Types Of Ram: Dram And Sram
    10. Types Of Ram: Dram And Sram
      860 views
      11. Rom: Read Only Memory
    11. Rom: Read Only Memory
      652 views
      12. Difference Between Sequential Access And Direct Access
    12. Difference Between Sequential Access And Direct Access
      704 views
      13. Flash Memory Cards
    13. Flash Memory Cards
      286 views
      14. Cache And Its Types
    14. Cache And Its Types
      618 views
      5.6: Use of Registers in Computer
      Internal Processor Memory: Registers
    1. Internal Processor Memory: Registers
      646 views
      2. General Purpose Register 2
    2. General Purpose Register 2
      2062 views
      5.7: Fetch Execute Cycle
      Fetch Execute Cycle
    1. Fetch Execute Cycle
      210 views
      5.8: Stack
      Stack Organized Cpu
    1. Stack Organized Cpu
      5.9: Addressing Modes
      Addressing Of A Memory Locations
    1. Addressing Of A Memory Locations
      5.10: Instruction code formats (Practice Test)
      Instruction Code
    1. Instruction Code
      304 views
      2. Instruction Format
    2. Instruction Format
      295 views
      5.11: Secondary Storage Devices (Practice Test)
      Secondary Memory: Characteristics Of Secondary Storage Devices
    1. Secondary Memory: Characteristics Of Secondary Storage Devices
      696 views
      2. Difference Between Magnetic Tape And Magnetic Disk
    2. Difference Between Magnetic Tape And Magnetic Disk
      5821 views
      3. Cd ( Compact Disk)
    3. Cd ( Compact Disk)
      3356 views
      4. Properties Of Optical Disk
    4. Properties Of Optical Disk
      303 views
      5. Hard Disk
    5. Hard Disk
      1327 views
      5.12: Port
      Ports And Types
    1. Ports And Types
      610 views
      2. Types Of Ports: Serial And Parallel Ports
    2. Types Of Ports: Serial And Parallel Ports
      747 views
      5.13: BUS
      Bus And Types Of Buses
    1. Bus And Types Of Buses
      741 views
      5.14: Operating System (Practice Test)
      The Concept Of Operating System
    1. The Concept Of Operating System
      3421 views
      2. Functions Of Operating System
    2. Functions Of Operating System
      14403 views
      3. Windows 7 Installation 1
    3. Windows 7 Installation 1
      212 views
      4. Single-User And Multi-User Operating System
    4. Single-User And Multi-User Operating System
      7084 views
      5. What Is User System Interface
    5. What Is User System Interface
      20 views
      6. Command Line User Interface
    6. Command Line User Interface
      743 views
      7. Menu Driven Interface
    7. Menu Driven Interface
      1306 views
      8. Graphical User Interface
    8. Graphical User Interface
      1354 views
      9. What Are Utility Programs
    9. What Are Utility Programs
      36 views

    Chapter 6 Data Protection and Copyright ( 14 videos)  (Practice Test)

      6.1: Data Loss
      What Is Information Security
    1. What Is Information Security
      83 views
      2. Privacy Issues And Hacking
    2. Privacy Issues And Hacking
      382 views
      6.2: Steps to secure the data from lost (Practice Test)
      Backup Of Data
    1. Backup Of Data
      2. Passwords
    2. Passwords
      9 views
      6.3: The Data Protection Act
      Data Protection Act
    1. Data Protection Act
      13 views
      6.4: Computer Virus (Practice Test)
      Computer Virus: What Is Virus And How It Spreads
    1. Computer Virus: What Is Virus And How It Spreads
      433 views
      2. Symptoms Of Virus Attack
    2. Symptoms Of Virus Attack
      390 views
      3. How To Protect From Viruses
    3. How To Protect From Viruses
      16 views
      4. Worm, Adware, Spyware, Malware
    4. Worm, Adware, Spyware, Malware
      152 views
      5. Virus Hoax
    5. Virus Hoax
      610 views
      6. Downloading And Installation Of Antivirus
    6. Downloading And Installation Of Antivirus
      171 views
      6.5: Copyright
      Copy Rights: Introduction And Historical Perspective
    1. Copy Rights: Introduction And Historical Perspective
      7 views
      2. Patent, Trade Secrets And Sabotage
    2. Patent, Trade Secrets And Sabotage
      6.6: Computer Crime
      Computer Crime
    1. Computer Crime
      14 views

    Chapter 7 Windows Operating System ( 14 videos)  (Practice Test)

      7.1: Microsoft Windows
      Important Features Of Windows
    1. Important Features Of Windows
      23 views
      2. The Desktop, Icons, Buttons
    2. The Desktop, Icons, Buttons
      141 views
      3. Familiarization With Windows Icons
    3. Familiarization With Windows Icons
      162 views
      4. Taskbar And Start Button
    4. Taskbar And Start Button
      665 views
      7.2: Working with Windows
      Control Buttons
    1. Control Buttons
      26 views
      2. Menu Bar
    2. Menu Bar
      38 views
      3. The Control Panel
    3. The Control Panel
      79 views
      4. Shut Down Process
    4. Shut Down Process
      42 views
      7.3: Files and Folders (Practice Test)
      Rules For Files And Folders Name
    1. Rules For Files And Folders Name
      233 views
      2. Find Your File
    2. Find Your File
      46 views
      3. Renaming Files Amd Folders
    3. Renaming Files Amd Folders
      46 views
      4. Deleting Files
    4. Deleting Files
      44 views
      5. Cut, Copy And Paste File
    5. Cut, Copy And Paste File
      55 views
      6. Folders And File Extensions
    6. Folders And File Extensions
      81 views

    Chapter 8 Word Processing ( 43 videos)  (Practice Test)

      8.1: Features of Word Processor
      More on Information Storage Devices
    1. More on Information Storage Devices
      30326 views
      2. Word Processor
    2. Word Processor
      24 views
      3. Word Window Overview
    3. Word Window Overview
      321 views
      8.2: Working with Microsoft Word (Practice Test)
      Design, Layout, Reference And Review Tab In Ms Word
    1. Design, Layout, Reference And Review Tab In Ms Word
      2. Manage A Word Document
    2. Manage A Word Document
      296 views
      3. Editing Text: Inserting And Selecting
    3. Editing Text: Inserting And Selecting
      282 views
      4. Editing Text: Cut, Copy, Paste And Delete
    4. Editing Text: Cut, Copy, Paste And Delete
      465 views
      5. Insert Current Date And Time And Count Words In Ms Word
    5. Insert Current Date And Time And Count Words In Ms Word
      6. Inserting Symbols In A Document
    6. Inserting Symbols In A Document
      96 views
      7. Use Of Equation Editor: Write Equation
    7. Use Of Equation Editor: Write Equation
      109 views
      8. Text Formatting: Font Size, Style And Color
    8. Text Formatting: Font Size, Style And Color
      278 views
      9. Text Formatting: Modify Text And Text Case
    9. Text Formatting: Modify Text And Text Case
      132 views
      10. Paragraph Formatting: Alignment And Indent
    10. Paragraph Formatting: Alignment And Indent
      351 views
      11. Paragraph Formatting: Border, Shading And Spacing
    11. Paragraph Formatting: Border, Shading And Spacing
      204 views
      12. Page Formatting: Orientation, Size And Columns
    12. Page Formatting: Orientation, Size And Columns
      124 views
      13. Page Formatting: Border And Color
    13. Page Formatting: Border And Color
      104 views
      14. Page Formatting: Insert Cover And Blank Page
    14. Page Formatting: Insert Cover And Blank Page
      104 views
      15. Insert Page Break And Section Break
    15. Insert Page Break And Section Break
      723 views
      16. Insert Header, Footer And Page Number
    16. Insert Header, Footer And Page Number
      142 views
      17. Insert/Position Image And Clip Art
    17. Insert/Position Image And Clip Art
      86 views
      18. Insert And Delete Word Art
    18. Insert And Delete Word Art
      820 views
      19. Insert Table, Add/Delete Row And Column
    19. Insert Table, Add/Delete Row And Column
      196 views
      20. Resize Rows And Columns
    20. Resize Rows And Columns
      188 views
      21. Border Settings In Tables
    21. Border Settings In Tables
      136 views
      22. Shading Settings In Tables
    22. Shading Settings In Tables
      93 views
      23. Merge And Split Cells In Tables
    23. Merge And Split Cells In Tables
      2356 views
      24. Saving A Word Document
    24. Saving A Word Document
      131 views
      25. Printing The Document
    25. Printing The Document
      228 views
      26. Searching For And Replacing Characters
    26. Searching For And Replacing Characters
      44 views
      27. Spell Checking And Thesaurus In Ms Word
    27. Spell Checking And Thesaurus In Ms Word
      70 views
      28. Use Of Hyperlink In Ms Word
    28. Use Of Hyperlink In Ms Word
      196 views
      29. Auto Text And Auto Complete
    29. Auto Text And Auto Complete
      150 views
      30. Foot Notes And End Notes In Ms Word
    30. Foot Notes And End Notes In Ms Word
      31. Table Of Contents And Index Generation
    31. Table Of Contents And Index Generation
      32. Mail Merge
    32. Mail Merge
      33. Macros
    33. Macros
      34. Desktop Publishing In Ms Word
    34. Desktop Publishing In Ms Word
      35. Popular Word Processing Packages
    35. Popular Word Processing Packages
      51 views
      36. Using Clipboard
    36. Using Clipboard
      86 views
      37. Using Text Boxes
    37. Using Text Boxes
      242 views
      38. Smart Lookup And Zoom Text In Ms Word
    38. Smart Lookup And Zoom Text In Ms Word
      8.3: Shortcut Keys in Microsoft Word
      Shortcut Keys 2 In Ms Word
    1. Shortcut Keys 2 In Ms Word
      2. Shortcut Keys 3 In Ms Word
    2. Shortcut Keys 3 In Ms Word

    Chapter 9 Spreadsheet Programs ( 17 videos)  (Practice Test)

      9.1: Spread Sheet
      Basics Of Spreadsheet
    1. Basics Of Spreadsheet
      587 views
      2. Popular Spread Sheet Programs
    2. Popular Spread Sheet Programs
      9.2: Working with Microsoft Excel (Practice Test)
      Excel Window
    1. Excel Window
      97 views
      2. Microsoft Excel Terminology
    2. Microsoft Excel Terminology
      237 views
      3. Creating Workbook, Naming And Working With Cells And Sheets
    3. Creating Workbook, Naming And Working With Cells And Sheets
      80 views
      4. Filling Columns And Rows
    4. Filling Columns And Rows
      79 views
      5. Addressing Cells
    5. Addressing Cells
      89 views
      6. Paste Cell Content
    6. Paste Cell Content
      82 views
      7. Working With Formulas
    7. Working With Formulas
      196 views
      8. Working With Functions
    8. Working With Functions
      281 views
      9. More On Working With Functions
    9. More On Working With Functions
      69 views
      10. Representing Data Graphically
    10. Representing Data Graphically
      79 views
      11. Manipulate Data: Filtering Cells
    11. Manipulate Data: Filtering Cells
      77 views
      12. Manipulate Data: Data Validation
    12. Manipulate Data: Data Validation
      86 views
      13. Format Data: Conditional Formatting
    13. Format Data: Conditional Formatting
      88 views
      14. Workbook Protection
    14. Workbook Protection
      66 views
      9.3: Shortcut Keys in MS Excel
      Shortcut Keys In Ms Excel
    1. Shortcut Keys In Ms Excel

    Chapter 10 Internet browsing and Email ( 24 videos)  (Practice Test)

      10.1: Internet
      What Is Internet
    1. What Is Internet
      369 views
      2. Applications Of Internet
    2. Applications Of Internet
      6844 views
      10.2: Connecting Internet
      Means Of Connecting Internet
    1. Means Of Connecting Internet
      2. Dial-Up Modem
    2. Dial-Up Modem
      3393 views
      3. Networking Software
    3. Networking Software
      2 views
      10.3: Types of Connection (Practice Test)
      Dial-Up Line
    1. Dial-Up Line
      8236 views
      2. DSL
    2. DSL
      558 views
      3. Isdn
    3. Isdn
      1733 views
      4. CDMA Technology
    4. CDMA Technology
      342 views
      5. Comparison Between Data Communication Lines
    5. Comparison Between Data Communication Lines
      96 views
      10.4: Components of Internet
      Www: World Wide Web
    1. Www: World Wide Web
      1141 views
      2. News Group
    2. News Group
      14 views
      10.5: Internet Protocols
      Transmission Control Protocol / Internet Protocol
    1. Transmission Control Protocol / Internet Protocol
      112 views
      2. HTTP (Hyper Text Transfer Protocol)
    2. HTTP (Hyper Text Transfer Protocol)
      3. SMTP (Simple Mail Transfer Protocol)
    3. SMTP (Simple Mail Transfer Protocol)
      4. File Transfer Protocol
    4. File Transfer Protocol
      10.6: Terminologies related to Internet
      Terminologies Related To Internet
    1. Terminologies Related To Internet
      423 views
      2. More On Terminologies
    2. More On Terminologies
      24 views
      3. Search Engine
    3. Search Engine
      54 views
      4. Introduction To Hyper Text Mark Up Language ( Html)
    4. Introduction To Hyper Text Mark Up Language ( Html)
      207 views
      10.7: Email
      Working With Email
    1. Working With Email
      26 views
      2. Creating An Email Account And Sign Out
    2. Creating An Email Account And Sign Out
      3. Parts Of Email Messages And Replying An Email
    3. Parts Of Email Messages And Replying An Email
      10.8: Compression
      Use Of Winrar Software
    1. Use Of Winrar Software