Library School offers librarian-mediated, computerized searching of bibliographic databases, via DECWriter III and Telnet.
History of Telnet: http://www.tcpipguide.com/free/t_TelnetOverviewHistoryandStandards.htm
Image of DECWriter III Credits: User LPfi on the Swedish Wikipedia (on Commons: LPfi), CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons https://commons.wikimedia.org/wiki/File:Decwriter.jpg