Geeky, rather than nerdy. But let's see.

We have 8 desktops and 5 laptops in active use

Both were big Trek fans back in the TNG days

They were into ham radio back in a day and ran a packet radio station

Nowadays my dad runs a weather station
My mum is max level hardcore player in WoW
They're 60 and 59.

Pretty geeky.