Search for "rm/cos 68000" I remember a little about it: You could set up "partitions", which mean reserve fixed amounts of RAM for different applications. It

Search for "rm/cos 68000" I remember a little about it: You could set up "partitions", which mean reserve fixed amounts of RAM for different applications. It ran on the (8 MB I think) external hard drive for the TRS-80 model 16. An advantage compared with Xenix is that it was smaller (used less of the hard drive). Also it had just a single directory, but had a form of hierarchy in that you could use any number of '.'s as separators: like usr.bin.ls. The total name could be long. I think OS-360 worked something like this. I think the last line of the screen was always the command line, and the other lines were for command (or cobol menu screen) output and worked like a pager. You could definitely hook up serial terminals. I found this: https://books.google.com/books?id=05wAGZQlo9QC&pg=PA694&lpg=PA694&dq=rm/cos+68000&source=bl&ots=gesmgDuQyt&sig=yiG4elq9cIWxcQua_Nxgf1YUOX8&hl=en&sa=X&ved=0ahUKEwin6qbqi_bNAhWEeSYKHTOwBDAQ6AEIHzAA#v=onepage&q=rm%2Fcos%2068000&f=false https://books.google.com/books?id=05wAGZQlo9QC&pg=PA694&lpg=... http://www.1000bit.it/ad/bro/altos/Altos-68000-Systems.pdf http://www.1000bit.it/ad/bro/altos/Altos-68000-Systems.pdf It's the same as "COS990", but for 68K.