Topic Summaries

Components required for internet connection

GCSE > Computer Science > CIE > GCSE Computer Science > COMPUTER SYSTEMS: Networks > Components required for internet connection
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COMPUTER SYSTEMS: Encoding and compression

COMPUTER SYSTEMS: Network topologies

COMPUTER SYSTEMS: Wired and wireless networks, protocols, and layers

COMPUTER SYSTEMS: Threats to computer systems and networks

COMPUTER SYSTEMS: Operating systems and utility software

COMPUTER SYSTEMS: Impact of technology on society

ALGORITHMS AND PROGRAMMING: Types of data

ALGORITHMS AND PROGRAMMING: Producing robust programs

ALGORITHMS AND PROGRAMMING: Designing, creating, and refining algorithms

ALGORITHMS AND PROGRAMMING: Programming languages

ALGORITHMS AND PROGRAMMING: Artificial Intelligence (AI)

Component Purpose
Modem
  • Modulates/demodulates signals between digital (your device) and analogue (telephone lines or fibre)
  • Connects local network to the internet service provider (ISP)
Router
  • Directs data between your network and the wider internet
  • Assigns local IP addresses
Switch
  • Connects multiple devices in a local area network (LAN) 
  • Uses MAC addresses to forward data only to the intended device, reducing unnecessary traffic and managing data flow
WAP (Wireless Access Point)
  • Provides Wi-Fi access to wireless devices
  • Connects to a wired network
  • These devices work together: modem connects to ISP → router handles traffic → switch shares connection locally → WAP enables wireless access.

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