GCSE
Computer Science
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Introduction to GCSE Computer Science -
1.1 Systems Architecture -
1.2 Memory and Storage -
1.3 Computer Networks, Connections and Protocols -
1.4 Network Security -
1.5 Systems Software -
1.6 Ethical, Legal, Cultural and Environmental Impacts of Digital Technology -
2.1 Algorithms -
2.2 Programming Fundamentals -
2.3 Producing Robust Programs -
2.4 Boolean Logic -
2.5 Programming Languages and Integrated Development Environments
1. Computer Systems
1.3.3 Hardware for Local Area Networks (LANs)
In this lesson, we will explore the hardware needed for a Local Area Network (LAN). We will look at wireless access points, routers, switches, and network interface controllers (NICs), as well as the transmission media used to connect devices. To connect stand-alone computers into a LAN, specific hardware components are required.
Wireless Access Points
Wireless access points (WAPs) enable wireless devices to connect to the LAN. They act as intermediaries between wireless devices (such as laptops, smartphones, and tablets) and the wired network infrastructure. WAPs are essential in providing Wi-Fi connectivity in homes, offices, and public places like cafes and airports.

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Create a free accountHardware Needed for LANs
- Wireless Access Points (WAPs) connect wireless devices to a LAN by relaying data between the devices and the wired network.
- Routers direct data between different networks and are essential for connecting a LAN to the internet.
- Switches forward data to the correct device on the network, improving performance by reducing unnecessary traffic.
- Network Interface Controllers (NICs) allow devices to connect to a network using wired or wireless signals.
- Transmission Media (e.g. Ethernet cables, fibre optics, and wireless signals) physically carry data between devices in the LAN.
