Articles on Mobile phones

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Once it’s up and running, the main change for 5G users will be increased speed and reduced delay. Robin Worrall/Unsplash

What is a mobile network, anyway? This is 5G, boiled down

5G is similar to existing mobile networks, but with key differences in hardware and software. And we still need to work out who will build this infrastructure in Australia.
SIM cards contain a computer chip that can do some simple mathematics and store some data. Flickr/jbdodane

Curious Kids: How do SIM cards make a phone work?

SIM cards link accounts to handsets. They keep communications private. They store messages. Although small and simple, they are a big part of modern mobile phone systems.

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