While the new Raspberry Pi Zero has the same technical performance as a leading edge computer a decade before, it does lack a case, display, keyboard, camera, power supply, mouse and storage memory. All of these are available at extra cost, naturally.
Depending on how much value you put on your time, the several hours involved in just getting this device set up and running even a basic task could swing the balance in favour of a cheap laptop from PC World. (Other retailers are available
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A technological miracle of miniaturisation, but you get what you pay for.