"26 years" is oddly precise, but the sinclair C5 was 1985, 34 years ago, so it's probably just how long he's served or something. https://wikipedia.org/wiki/Sinclair_C5

BONUS "Micro Men" documentary/drama about Sir Clive Sinclair vs Acorn (from which grew Acorn RISC Machine -> ARM) https://youtube.com/watch?v=XXBxV6-zamM (1h 24m) "A man's reach should exceed his grasp or what's a heaven for?"