Backing up 20 DEC RA81 disk drives with 120MB capacity 9-track tapes. The RA81s were 454MB each.
A 20-node VAXcluster using workstations and 10base5 (coax) Ethernet.
StorageTek anything.
Real laser printers that could set the paper on fire. (DEC LN01s that were rebranded Xerox units)
PL/I
Bliss-32
Microfiche of the VAX/VMS source