Which tech-related sound instantly takes you back in time?

That unholy symphony of beeps and static that meant you were about to spend 20 minutes loading a single webpage. Bonus chaos if someone picked up the landline mid-connection.

The default Nokia tune that echoed through every classroom, bus, and pub in the early 2000s. If you can't hum it, you weren't really there.

That gentle little jingle promising a productive afternoon on the family PC. Usually followed by an hour of Solitaire instead.

That haunting, almost spiritual chime as the grey console whirred to life. Pure pre-Crash Bandicoot anticipation.

The cheeky little buzz that meant your mate was bored and demanding attention. The original read receipt with attitude.