My father brought home the first “computer” circa 1973 or so. It read punch cards to address envelopes. it may also have featured a primitive mail merge feature for the invitations themselves.
By the time we switched to a nixdorf computer in 1981 (German BASIC!), the punchcard computer was promptly picked up by a museum. My cousin spent a summer doing data entry to transfer all the addresses to the new computer.
The printer for the nixdorf spat ink at the pages, giving the type a raised feel. Likely a wax printer? The next iteration were a bunch of toshiba laptops.