CBSE 12th CS Unit - 2 Chapter 4 Network devices

 TOPIC – 4

Network Devices: The Building Blocks of Your Network

Network devices are like the traffic cops and bridges of the digital world, ensuring smooth and efficient data flow within and between networks. Here are some key network devices:

1. Modem

  • Function: Converts digital data from your computer into analog signals for transmission over telephone or cable lines, and vice versa.
  • Diagram:



 

Modem

2. Ethernet Card

  • Function: Enables your computer to connect to a wired network using Ethernet cables.
  • Diagram:



 

                                                                Ethernet Card

3. RJ45 Connector

  • Function: The standard connector for Ethernet cables, shaped like a wide, flattened telephone plug.
  • Diagram:


 

RJ45 Connector

4. Repeater

  • Function: Receives a weak signal, amplifies it, and retransmits it to extend the range of a network.
  • Diagram:


 

                                                                    Repeater

5. Hub

  • Function: Connects multiple devices on a network, but broadcasts all data received to all connected devices.
  • Diagram:

 


                                                                            Hub

6. Switch

  • Function: Connects multiple devices on a network, but intelligently forwards data only to the intended recipient.
  • Diagram:

 


                                                                        Switch

7. Router

  • Function: Directs data traffic between different networks, such as your home network and the internet.
  • Diagram:


8. Gateway

  • Function: Connects networks with different protocols, allowing them to communicate.
  • Diagram:


 

                                                                        Gateway

9. Wi-Fi Card

  • Function: Enables your device to connect to a wireless network.
  • Diagram:


 

                                                                                WiFi Card

No comments:

Post a Comment