Networking Fundamentals- Introduction to Networking

 

What is a Network?
 
A network consists of two or more computers or devices connected together to share resources (like printers or files) and information (like web pages or emails).
 
Core Components
 
Every network relies on four main parts:
  1. Devices (Nodes): The hardware you use, such as PCs, smartphones, servers, or tablets.
  2. Media: The “path” the data travels on. This can be wired (Ethernet cables, Fiber optics) or wireless (Wi-Fi, Bluetooth).
  3. Network Devices: Hardware that manages the traffic, specifically:
    • Switch: Connects devices within a single network (like your home).
    • Router: Connects different networks together (connects your home to the Internet).
  4. Protocols: The “rules” for communication. Just as HTML is the language of web pages, TCP/IP is the primary set of rules for the Internet.
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