Years 5–6 Digital Systems Definitions Worksheet: Data and networks (Modules 21–30)
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Date:
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Key terms
Write what each term means, in your own words.
1
data transmission
2
wired transmission
3
wireless transmission
4
Bluetooth
5
network
6
LAN vs WAN
7
internet
8
client-server
9
router
10
network switch
Answer Key
Years 5–6 Digital Systems · Modules 21–30 · Student wording will vary for definitions
1data transmission — The sending of data, such as text, images, audio or video, from a sender device to a receiver device.
2wired transmission — Sending data as signals along a physical cable, such as a USB, Ethernet or fibre optic cable. Wired links are usually fast and reliable.
3wireless transmission — Sending data as radio signals through the air with no cables, like Wi-Fi, Bluetooth and mobile data. Range and interference can weaken the signal.
4Bluetooth — A wireless technology that sends data between two nearby paired devices, such as a phone and headphones, over a short range.
5network — A group of digital systems connected together so they can share data, files, printers and an internet connection. Each connected device is called a node.
6LAN vs WAN — A LAN connects devices in one small area like a home or school. A WAN connects many LANs over a large distance. The internet is the largest WAN.
7internet — The global network of networks that connects computers worldwide. The World Wide Web is one service that runs on it, alongside email, streaming and online games.
8client-server — A client, like your browser, sends a request for data and a server stores that data and sends a response back.
9router — A device that directs data between networks, such as joining a home LAN to the internet and choosing the path data packets take. A home Wi-Fi router also shares the connection wirelessly.
10network switch — A device that connects computers on the same network and sends data only to the device it is meant for, using its ports. A router links different networks.