I used an IBM RT in 1986. It was the predecessor to the /6000 as a workstation class machine running AIX (Unix). It was pretty cool to use but nowhere near as cool as the Sun Workstations the grad students got to use. https://en.wikipedia.org/wiki/IBM_RT_PC. (also now you know one influence on the name Windows RT).
I used an IBM RT in 1986. It was the predecessor to the /6000 as a workstation class machine running AIX (Unix). It was pretty cool to use but nowhere near as cool as the Sun Workstations the grad students got to use. https://en.wikipedia.org/wiki/IBM_RT_PC. (also now you know one influence on the name Windows RT).