In 1936, the British mathematician Alan Turing came up with an idea for a universal computer. It was a simple device: an infinite strip of tape covered in zeros and ones, together with a machine that ...

Got an old computer collecting dust in a closet or tucked under a desk? You're not alone. Many people hold on to aging desktops and laptops, either as backup machines or because they still run "just ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Kimber Streams Kimber Streams is a writer who has been covering laptops and ...