What is a Terminal Emulator? Understanding 'ls' CommandFigure 1: An IBM 2741 teletype1 and the IBM System/360 Mo. 40 mainframe computer.2 These were released in the late 60s, and were prevalent until the 70s. The purchase of one of these mainframes (>$200k at the time) included a teletype.3 Teletypes were basic text clients to allow users to interact with a computer. It’s short for “teletypewriter” because they descend from typewriters, and are partly
