Gray code is a systematic ordering of binary numbers in a way that each successive value differs from the previous one in ...

A standard telephone keypad, with four rows of three keys each. The top row consists of 1, 2, and 3, with keys continuing down in order until the last row, which is usually *, 0, and #. Such a keypad ...

The Lowfree Flow84 is the latest episode in my on-again, off-again love affair with mechanical keyboards. I describe it ...

Keypad phones, believe it or not, are still in use, and there is a surprising amount of variety to choose from. Some of the phones include 4G connectivity, cameras, and are built to last. If you're ...