Back in high school in the late 90s, I bought a pallet of Tektronix 4211 terminals [1] for about $40 from a local place that resold old computer junk. All in t

Back in high school in the late 90s, I bought a pallet of Tektronix 4211 terminals [1] for about $40 from a local place that resold old computer junk. All in total there were about 10 of the terminal base units and three, for the time, extremely large 21" monitors. I figured this came from an engineering firm, since these terminals also came with some digitizer pads. I thought they were X-Terminals and was very disappointed that I couldn't get them do anything beyond being text terminals. It was only recently that I discovered that they were actually intended to be used with this proprietary graphics protocol. [1] Exactly like this: https://upload.wikimedia.org/wikipedia/commons/8/8f/1994._Shelly_Stelling_with_Tektronix_4211_graphics_terminal._Regional_Office%2C_Portland%2C_Oregon._%2827276702499%29.jpg https://upload.wikimedia.org/wikipedia/commons/8/8f/1994._Sh...