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.
Smart phones are rarely recycled and that’s just one reason tech devices are increasing our carbon footprints. Here Phil Schiller, Apple’s senior vice president of worldwide marketing, is seen in 2016 talking about new iPhones. (AP Photo/Marcio Jose Sanchez, File)

How smartphones are heating up the planet

New research shows the impact of technology, especially smartphones, on carbon emissions. Encouraging consumers to get new phones every couple of years leads to extraordinary and unnecessary waste.
Tech companies want to reduce conflict between texting and driving. Tero Vesalainen/Shutterstock.com

Why Silicon Valley wants you to text and drive

Why do tech companies care so much about self-driving cars? If drivers no longer need to pay attention to the road, they can use their mobile devices even more.

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