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As the ball flashes past at an unfeasibly fast speed, one of the most debated subjects is which player has the quickest serve. While IBM does not operate the Cyclops radar that decides if a serve is "in" or "out", it is responsible for telling us how fast the ball left the court.
The cabinets handling the communications for Wimbledon are modest. Every packet of data passes through one of these three units.
Wimbledon is by no means exclusively high-tech. Here, on one of the outer courts, the match score is being kept using a more time-honoured method — a ball boy and a stack of cards.
The score is also being kept electronically, but the electronic scoreboards themselves are the preserve of the show courts only.