Tech words, explained in plain English. Each page gives you the short answer first, then how it works and why it matters.
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What is a cache?
A cache is a small, fast store of copies of data that has been used recently, kept so it can be reused quickly. Instead of…
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What is a VPN?
A VPN (virtual private network) creates a protected, encrypted connection between your device and a server run by the VPN service. Your internet traffic travels…
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What is an API?
An API (application programming interface) is a set of rules that lets one piece of software ask another for information or for a task to…
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What is cloud computing?
Cloud computing means using computers that belong to someone else, over the internet, instead of your own. You rent storage, processing power or ready-made software…