I remember when the office picked up a micro vax to hook up to another micro vax to share files....I remember the training indicating that about once a month we needed to download what was effectively a IP Host table (/etc/hosts).
All it was to be used for was file transfers from a remote detachment to the headquarters location.

At another work location I saw what unlimited exposure pictures looked like without having to use a modem. - there you go - your reference.