In the early 80's I use to go into a place my dad did hardware contract work every month to help him vacuum out filters in all their CAD machines. Their server

In the early 80's I use to go into a place my dad did hardware contract work every month to help him vacuum out filters in all their CAD machines. Their server room didn't look much different from this (except for more crowded, and probably a smaller footprint) and they even had one teletype box for their tape library backups. I still have a huge plywood box the size of a toy chest (actually, it was my toy chest!) that a 20MB hard drive and enclosure came in.