Computer Science | Class 9

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    Chapter 1 Fundamentals of Computer ( 66 videos)  (Practice Test)

      1.1: Introduction to Computer (Practice Test)
      What is Computer
    1. What is Computer
      7223 views
      2. A Quick Review Of History
    2. A Quick Review Of History
      1822 views
      3. Mechanical Computing Devices
    3. Mechanical Computing Devices
      1612 views
      4. Electro- Mechanical Computing Devices
    4. Electro- Mechanical Computing Devices
      1260 views
      5. Generations Of Computer: An Overview
    5. Generations Of Computer: An Overview
      1405 views
      6. 1St Generation Of Computer
    6. 1St Generation Of Computer
      1844 views
      7. 2Nd Generation Of Computer
    7. 2Nd Generation Of Computer
      1986 views
      8. 3Rd Generation Of Computer
    8. 3Rd Generation Of Computer
      1387 views
      9. 4Th Generation Of Computer
    9. 4Th Generation Of Computer
      1977 views
      10. 5Th Generation Of Computer
    10. 5Th Generation Of Computer
      2518 views
      11. More On 5Th Generation Of Computer
    11. More On 5Th Generation Of Computer
      12. Types Of Computer W.R.T Working
    12. Types Of Computer W.R.T Working
      1277 views
      13. Types of Computer w.r.t Size, Speed and efficiency
    13. Types of Computer w.r.t Size, Speed and efficiency
      1293 views
      14. Types Of Computer W.R.T Purpose
    14. Types Of Computer W.R.T Purpose
      225 views
      15. Mobile Computers
    15. Mobile Computers
      155 views
      1.2: Role of Computer (Practice Test)
      Applications Of Computers In Education
    1. Applications Of Computers In Education
      7497 views
      2. Applications Of Computers In Health
    2. Applications Of Computers In Health
      3. Applications Of Computers In Business
    3. Applications Of Computers In Business
      550 views
      4. Artificial Intelligence And Vision Enhancements
    4. Artificial Intelligence And Vision Enhancements
      5. Robotics And Computer Assisted Translation
    5. Robotics And Computer Assisted Translation
      6. 3D and holographic imaging and Virtual Reality
    6. 3D and holographic imaging and Virtual Reality
      7. The Scope Of Career In IT
    7. The Scope Of Career In IT
      298 views
      1.3: Computer Hardware (Practice Test)
      What Is Computer Hardware
    1. What Is Computer Hardware
      1255 views
      2. A System Unit: Desktop And Tower Casing
    2. A System Unit: Desktop And Tower Casing
      941 views
      3. Mother Board
    3. Mother Board
      205 views
      4. More On Mother Board
    4. More On Mother Board
      239 views
      5. Central Processing Unit: Alu, Control Unit
    5. Central Processing Unit: Alu, Control Unit
      5332 views
      6. General Purpose Register 2
    6. General Purpose Register 2
      2062 views
      7. Cpu Clock And Co-Processor
    7. Cpu Clock And Co-Processor
      17 views
      8. Cache And Its Types
    8. Cache And Its Types
      618 views
      9. Bus And Types Of Buses
    9. Bus And Types Of Buses
      741 views
      10. Input Device Sensors
    10. Input Device Sensors
      307 views
      11. Terminals I/O Devices
    11. Terminals I/O Devices
      63 views
      12. Keyboard
    12. Keyboard
      473 views
      13. Mouse
    13. Mouse
      282 views
      14. Touch Screen
    14. Touch Screen
      112 views
      15. Light Pen
    15. Light Pen
      2834 views
      16. Optical Recognition System
    16. Optical Recognition System
      242 views
      17. Microphone
    17. Microphone
      178 views
      18. Digital Camera
    18. Digital Camera
      215 views
      19. Touch Pad
    19. Touch Pad
      96 views
      20. Joy Stick
    20. Joy Stick
      239 views
      21. Track Ball
    21. Track Ball
      459 views
      22. Barcode And Qr Readers
    22. Barcode And Qr Readers
      126 views
      23. Scanners And Its Types
    23. Scanners And Its Types
      242 views
      24. More On Scanners
    24. More On Scanners
      142 views
      25. Printers And Its Types
    25. Printers And Its Types
      758 views
      26. Monitors
    26. Monitors
      366 views
      27. Types Of Monitors: Crt Monitor
    27. Types Of Monitors: Crt Monitor
      334 views
      28. Screen Resolution
    28. Screen Resolution
      125 views
      29. Plotter
    29. Plotter
      287 views
      30. Speakers
    30. Speakers
      94 views
      31. Multimedia Projector
    31. Multimedia Projector
      63 views
      32. Main Memory
    32. Main Memory
      33. Ram: Random Access Memory
    33. Ram: Random Access Memory
      691 views
      34. Rom: Read Only Memory
    34. Rom: Read Only Memory
      652 views
      1.4: Basic Operations of Computer
      Basic Operations Of Computer
    1. Basic Operations Of Computer
      3925 views
      1.5: Computer Software (Practice Test)
      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. Types Of System Software
    4. Types Of System Software
      7455 views
      5. Language Translators : An Overview
    5. Language Translators : An Overview
      583 views
      6. Types Of Application Software
    6. Types Of Application Software
      4324 views
      7. Productivity Software
    7. Productivity Software
      1396 views
      8. Business And Entertainment Application Software
    8. Business And Entertainment Application Software
      351 views
      9. Educational Application Software
    9. Educational Application Software
      1640 views

    Chapter 2 Fundamentals of Operating System ( 17 videos)  (Practice Test)

      2.1: Introduction to Operating System (Practice Test)
      The Concept Of Operating System
    1. The Concept Of Operating System
      3421 views
      2. Objectives Of Operating System
    2. Objectives Of Operating System
      3513 views
      3. Functions Of Operating System
    3. Functions Of Operating System
      14403 views
      4. More On Functions Of Operating System
    4. More On Functions Of Operating System
      74 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
      2.2: Types of Operating System (Practice Test)
      Single-User And Multi-User Operating System
    1. Single-User And Multi-User Operating System
      7084 views
      2. Batch Processing Operating System
    2. Batch Processing Operating System
      10918 views
      3. Time Sharing Operating System
    3. Time Sharing Operating System
      13476 views
      4. Real Time Operating System
    4. Real Time Operating System
      1879 views
      2.3: Software Installation (Practice Test)
      Windows 7 Installation 1
    1. Windows 7 Installation 1
      212 views
      2. Windows 7 Installation 2
    2. Windows 7 Installation 2
      191 views
      3. Run Command In Windows 10
    3. Run Command In Windows 10
      4. Installation Of Ms Office
    4. Installation Of Ms Office
      359 views
      5. Downloading And Installation Of Antivirus
    5. Downloading And Installation Of Antivirus
      171 views

    Chapter 3 Office Automation ( 19 videos)  (Practice Test)

      3.1: MS Word (Practice Test)
      What is Word Processing
    1. What is Word Processing
      30326 views
      2. Word Processor
    2. Word Processor
      24 views
      3. Word Window Overview
    3. Word Window Overview
      321 views
      4. Design, Layout, Reference And Review Tab In Ms Word
    4. Design, Layout, Reference And Review Tab In Ms Word
      5. Manage A Word Document
    5. Manage A Word Document
      296 views
      6. Editing Text: Inserting And Selecting
    6. Editing Text: Inserting And Selecting
      282 views
      7. Editing Text: Cut, Copy, Paste And Delete
    7. Editing Text: Cut, Copy, Paste And Delete
      465 views
      8. Page Formatting: Orientation, Size And Columns
    8. Page Formatting: Orientation, Size And Columns
      124 views
      9. Page Formatting: Border And Color
    9. Page Formatting: Border And Color
      104 views
      10. Page Formatting: Insert Cover And Blank Page
    10. Page Formatting: Insert Cover And Blank Page
      104 views
      11. Table Of Contents And Index Generation
    11. Table Of Contents And Index Generation
      3.2: MS Excel 2010 (Practice Test)
      Basics Of Spreadsheet
    1. Basics Of Spreadsheet
      587 views
      2. Excel Window
    2. Excel Window
      97 views
      3. Microsoft Excel Terminology
    3. Microsoft Excel Terminology
      237 views
      4. Manipulate Data: Filtering Cells
    4. Manipulate Data: Filtering Cells
      77 views
      5. Working With Formulas
    5. Working With Formulas
      196 views
      6. Working With Functions
    6. Working With Functions
      281 views
      7. More On Working With Functions
    7. More On Working With Functions
      69 views
      8. Representing Data Graphically
    8. Representing Data Graphically
      79 views

    Chapter 4 Data Communication and Network ( 45 videos)  (Practice Test)

      4.1: Basics of Data Communication (Practice Test)
      Difference Between Data And Information
    1. Difference Between Data And Information
      617 views
      2. What Is Data Communication
    2. What Is Data Communication
      560 views
      3. Data Communication Terminologies
    3. Data Communication Terminologies
      892 views
      4. Signal
    4. Signal
      287 views
      5. Data Rate, Baud Rate
    5. Data Rate, Baud Rate
      2686 views
      6. How To Calculate Baud Rate
    6. How To Calculate Baud Rate
      6053 views
      7. Snr: Sound To Noise Ratio
    7. Snr: Sound To Noise Ratio
      275 views
      8. Components Of Communication System
    8. Components Of Communication System
      224 views
      9. Properties Of Good Communication System
    9. Properties Of Good Communication System
      282 views
      4.2: Transmission Medium (Practice Test)
      Stp: Ethernet: Twisted Pair Cable
    1. Stp: Ethernet: Twisted Pair Cable
      797 views
      2. Co-Axial Cable
    2. Co-Axial Cable
      308 views
      3. Optical Fibers
    3. Optical Fibers
      566 views
      4. Wireless Media: Microwave Transmission
    4. Wireless Media: Microwave Transmission
      407 views
      5. Wireless Media: Radio Waves And Infrared
    5. Wireless Media: Radio Waves And Infrared
      584 views
      6. How Noise Affect Communication Quality: Cross Talk
    6. How Noise Affect Communication Quality: Cross Talk
      693 views
      7. Attenuation And Distortions
    7. Attenuation And Distortions
      824 views
      4.3: Communication Devices (Practice Test)
      Switch/Access Point
    1. Switch/Access Point
      556 views
      2. Router
    2. Router
      294 views
      3. Dial-Up Modem
    3. Dial-Up Modem
      3393 views
      4. Dial-Up Line
    4. Dial-Up Line
      8236 views
      5. DSL
    5. DSL
      558 views
      6. Isdn
    6. Isdn
      1733 views
      7. Network Interface Card
    7. Network Interface Card
      920 views
      4.4: Basics of Computer Networks (Practice Test)
      What Is Computer Network
    1. What Is Computer Network
      1414 views
      2. Types Of Networking W.R.T Area: Lan, Wan, Man
    2. Types Of Networking W.R.T Area: Lan, Wan, Man
      367 views
      4.5: Fundamentals of Topologies (Practice Test)
      What Is Network Topology
    1. What Is Network Topology
      609 views
      2. Tree Topology
    2. Tree Topology
      26 views
      3. Network Topologies: Advantages And Disadvantages
    3. Network Topologies: Advantages And Disadvantages
      380 views
      4. More on Network Topologies: Advantages And Disadvantages
    4. More on Network Topologies: Advantages And Disadvantages
      202 views
      4.6: Standard organization
      Network Standards
    1. Network Standards
      30 views
      4.7: Network Architecture (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
      11. Transmission Control Protocol / Internet Protocol
    11. Transmission Control Protocol / Internet Protocol
      112 views
      12. Tcp/Ip Architecture
    12. Tcp/Ip Architecture
      1909 views
      4.8: Network Addresses (Practice Test)
      Internet Protocol Address
    1. Internet Protocol Address
      239 views
      2. Classes Of IP Address
    2. Classes Of IP Address
      91 views
      3. More On Classes Of IP Addresses
    3. More On Classes Of IP Addresses
      81 views

    Chapter 5 Computer Security and Ethics ( 22 videos)  (Practice Test)

      5.1: Computer Security (Practice Test)
      What Is Information Security
    1. What Is Information Security
      83 views
      2. Information Security Terminologies
    2. Information Security Terminologies
      267 views
      3. Cyber Safety And Security
    3. Cyber Safety And Security
      4. Computer Crime
    4. Computer Crime
      14 views
      5. Hacker And Cracker
    5. Hacker And Cracker
      1296 views
      6. Phishing In Information Security
    6. Phishing In Information Security
      5.2: Malware (Practice Test)
      What Is Malware And How It Affect Computers
    1. What Is Malware And How It Affect Computers
      137 views
      2. Symptoms Of Virus Attack
    2. Symptoms Of Virus Attack
      390 views
      3. Computer Virus: What Is Virus And How It Spreads
    3. Computer Virus: What Is Virus And How It Spreads
      433 views
      4. Worm, Adware, Spyware, Malware
    4. Worm, Adware, Spyware, Malware
      152 views
      5. Backup Of Data
    5. Backup Of Data
      6. How To Protect From Viruses
    6. How To Protect From Viruses
      16 views
      7. Downloading And Installation Of Antivirus
    7. Downloading And Installation Of Antivirus
      171 views
      5.3: Authentication Mechansim (Practice Test)
      Authorized Access And Unauthorized Access
    1. Authorized Access And Unauthorized Access
      9663 views
      2. Difference Between Authorization And Authentication
    2. Difference Between Authorization And Authentication
      99 views
      3. Authentication Methodologies: Password And Pin Number
    3. Authentication Methodologies: Password And Pin Number
      450 views
      4. Access Card And Biometrics
    4. Access Card And Biometrics
      79 views
      5. Data Security And Security Violations
    5. Data Security And Security Violations
      9 views
      6. Security Threats
    6. Security Threats
      6 views
      7. Multi Model Authentication
    7. Multi Model Authentication
      67 views
      5.4: Professional Ethics in Computer Field (Practice Test)
      Areas Of Computer Ethics: Information Accuracy
    1. Areas Of Computer Ethics: Information Accuracy
      502 views
      2. Patent, Trade Secrets And Sabotage
    2. Patent, Trade Secrets And Sabotage

    Chapter 6 Web Development ( 26 videos)  (Practice Test)

      6.1: Basic terminology of Web development (Practice Test)
      Www: World Wide Web
    1. Www: World Wide Web
      1141 views
      2. Terminologies Related To Internet
    2. Terminologies Related To Internet
      423 views
      3. More On Terminologies
    3. More On Terminologies
      24 views
      4. Types Of Websites: News Websites And Web Portals
    4. Types Of Websites: News Websites And Web Portals
      293 views
      5. Informational And Educational Websites
    5. Informational And Educational Websites
      471 views
      6. Search Engine
    6. Search Engine
      54 views
      6.2: Introduction to HTML (Practice Test)
      Introduction To Hyper Text Mark Up Language ( Html)
    1. Introduction To Hyper Text Mark Up Language ( Html)
      207 views
      2. Creating And Displaying Html Documents
    2. Creating And Displaying Html Documents
      204 views
      3. Tags Used To Markup Html Elements
    3. Tags Used To Markup Html Elements
      204 views
      6.3: Designing and Formatting (Practice Test)
      Html Head And Body Tags
    1. Html Head And Body Tags
      244 views
      2. Basics Of Text Formatting
    2. Basics Of Text Formatting
      166 views
      3. More On Basic Of Text Formatting
    3. More On Basic Of Text Formatting
      113 views
      4. Text Formatting Tags
    4. Text Formatting Tags
      139 views
      5. Uses Of Text Formatting Tags
    5. Uses Of Text Formatting Tags
      133 views
      6.4: Creating Lists
      Creating List In Html, Ordered List, Unordered List
    1. Creating List In Html, Ordered List, Unordered List
      379 views
      2. Definition List And Nested List
    2. Definition List And Nested List
      114 views
      6.5: Image and Background (Practice Test)
      Adding Image In A Webpage
    1. Adding Image In A Webpage
      135 views
      2. Specifying Image Size In Webpage
    2. Specifying Image Size In Webpage
      99 views
      3. Applying Background And Foreground Colors
    3. Applying Background And Foreground Colors
      129 views
      4. Graphic Designing
    4. Graphic Designing
      106 views
      6.6: Hyperlinks (Practice Test)
      Hyperlink And Anchor Tags
    1. Hyperlink And Anchor Tags
      151 views
      2. Creating Hyperlink With In A Webpage
    2. Creating Hyperlink With In A Webpage
      89 views
      3. Creating Graphical Hyperlink
    3. Creating Graphical Hyperlink
      111 views
      6.7: Tables (Practice Test)
      Creating Tables
    1. Creating Tables
      123 views
      2. More On Creating Tables
    2. More On Creating Tables
      101 views
      6.8: Frames
      Creating Frames
    1. Creating Frames
      135 views

    Chapter 7 Introduction to Database System ( 30 videos)  (Practice Test)

      7.1: Database (Practice Test)
      Introduction to Database
    1. Introduction to Database
      648 views
      2. More on Introduction to Database
    2. More on Introduction to Database
      31 views
      3. Objectives Of Database
    3. Objectives Of Database
      17 views
      4. The Database Management System
    4. The Database Management System
      328 views
      5. Objectives Of Dbms
    5. Objectives Of Dbms
      14 views
      6. Traditional File Management System: Record And File
    6. Traditional File Management System: Record And File
      536 views
      7. Data Handling in File Management System
    7. Data Handling in File Management System
      46 views
      8. Advantages Of Database System
    8. Advantages Of Database System
      673 views
      9. Disadvantages Of Database System
    9. Disadvantages Of Database System
      20 views
      10. Features Of Dbms
    10. Features Of Dbms
      14 views
      7.2: Basic components of DBMS (Practice Test)
      Rows,Tuples, Records
    1. Rows,Tuples, Records
      161 views
      2. Views
    2. Views
      231 views
      3. Cardinality Of A Relation
    3. Cardinality Of A Relation
      1515 views
      4. Modality: Optional
    4. Modality: Optional
      333 views
      5. Relation And Table
    5. Relation And Table
      114 views
      6. Database Objects: Table
    6. Database Objects: Table
      626 views
      7. Creating A New Table
    7. Creating A New Table
      136 views
      8. Creating The Query: Using Query Design Command
    8. Creating The Query: Using Query Design Command
      358 views
      9. Using Simple Query Wizard
    9. Using Simple Query Wizard
      31 views
      7.3: Data Modeling (Practice Test)
      Entity Relationship Model: Entity, Attribute And Relationship
    1. Entity Relationship Model: Entity, Attribute And Relationship
      274 views
      2. Degree Of A Relationship
    2. Degree Of A Relationship
      166 views
      3. E-R Diagram For Library Management System
    3. E-R Diagram For Library Management System
      14632 views
      4. E-R Diagram For School Management System
    4. E-R Diagram For School Management System
      9080 views
      5. E-R Diagram For Air Ticket Booking System
    5. E-R Diagram For Air Ticket Booking System
      2925 views
      6. Relational Schema
    6. Relational Schema
      507 views
      7. Keys: Primary Key
    7. Keys: Primary Key
      170 views
      8. Composite Key
    8. Composite Key
      215 views
      9. Transformation Of E-R Model Into Relational Schema
    9. Transformation Of E-R Model Into Relational Schema
      263 views
      10. Types Of Keys: Sort Key And Foreign Key
    10. Types Of Keys: Sort Key And Foreign Key
      20 views
      11. Types Of Keys: Super Key
    11. Types Of Keys: Super Key
      343 views