Sentence:  I knew every chip in Bobby's simulator by heart; it looked like your workaday Ono-Sendai VII, the ‘<WSD>Cyberspace</WSD> Seven', but I'd rebuilt it so many times that you'd have had a hard time finding a square millimetre of factory circuitry in all that silicon. 
Meaning of the word marked with <WSD> tags:  A three-dimensional representation of virtual space in a computer network.