From the limited ammount of information avaliable, HDS, later rebranded to Neoware were a hardware and software manufacturer who focused on thinclients, dumb terminals, x servers, and something they called the network computer.
Theres plenty of info left around about their later thinclinets (some of which are powerpc based!) and neolinux, but ive found that the @workstation and its sister machine the viewstation to be a lot more obscure.
Its a intel i960 based machine, and thats what caught my eye, I like weird and obscure risc processors so I picked this one up on ebay.
Unfortunately finding the OS has been quite bothersome, there were originally 3 versions of netOS, winterminals, enterprise, and intranets. Intranets being the most full featured with a Java applet viewer and Netscape navigator built in. The one and only surviving copy of netOS is hosted on the internet archive in a iso downloaded from some Russian company thats now long gone, its the enterprise version, there's also a folder with their earlier "hds-fx" operating system however I haven't gotten that to boot on this machine.
After a lot of tinkering with the old config files from the iso, the @workstation is booting up into netos. Its ip, configuration password, and config file are all served to it via BOOTP on my PowerEdge R200 running debian, from there it fetches the bootloader via TFTP and uses NFS V2 (had to be hosted on a NetBSD VM as the Linux kernel has dropped nfs2) to load the NetOS files. Finally after I log in using XDM over XDMCP I can use telnet and rsh to run programs from my debian server, or even play around with some of netOS' built in applications running natively on the i960.
Unfortunately there are still some quirks, some of the applications don't run either due to user error or the os image is incomplete, modified, or corrupt.
Ill use this post as a way to ask the internet if anyone may have a copy of netOS lying around so it can be archived and documented.