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Over the last year, the terms UHD and 4K have become so conflated that TV makers, broadcasters, and tech blogs are now using them interchangeably. Let me just say this now: 4K and UHD (Ultra HD) are not the same thing. Yes, as far as the consumer is concerned, there isn’t much of a practical difference — but, in much ...

Why is a keyboard shaped like a keyboard? Better yet, why are all of the letters of the alphabet, numbers, and some punctuation, arranged in four slightly diagonal rows of keys — and more importantly, why has the layout of the keyboard gone almost unchanged in 100 years? There must be a really good reason, right? Wrong. Typewriter diagram, showing ...