Summary 📝

Modes of connection refers to the various methods through which devices communicate with each other. 

In computer science, these modes include wired and wireless connections. Wired connections involve physical cables to transfer data, such as Ethernet cables. On the other hand, wireless connections use radio waves for communication, like Wi-Fi and Bluetooth. Devices in a network can be connected in a star network topology, where they directly communicate with a central hub.

To ensure smooth communication, devices use standardised rules known as protocols. These protocols dictate how data is transmitted and received in the form of frames.

Key learning Points 📌

• Devices in a network can be connected using wired or wireless methods.
  
  

• Ethernet cables (like UTP or fibre‐optic) are used to link devices reliably via switches or routers.
  
  

• Networks using Ethernet support different topologies such as bus and star.
  
  

• Wi‑Fi allows devices to connect wirelessly within a local area (e.g. home or school), using radio frequencies. craigndave.org
  
  

• Bluetooth connects personal devices over short distances (Personal Area Network).
  
  

• Wireless technology uses different frequency bands and channels to avoid interference and share network access.
  
  

Students should understand which method suits different needs: wired for speed and reliability; wireless for mobility and convenience.