DeskStation Technology was a manufacturer of RISC-based computer workstations intended to run Windows NT. DeskStation was based in Lenexa, Kansas. MIPS-based systems In late 1991, DeskStation announced a workstation based on the MIPS R3000A CPU, the IceStation 3000, that was to be the basis of a product compliant with the Advanced Computing Environment (ACE) specification, with this workstation already existing in prototype form and with early production models to be made available for beta-testing within a matter of weeks. However, at that time, none of the operating systems featured in the ACE specification were available: Windows NT being expected in early 1992 and the ACE-targeted SCO Unix product expected in late 1992. Consequently, DeskStation hoped to license Ultrix from Digital as an interim measure, aiming to provide binary compatibility with the eventual SCO product. The workstation featured a system architecture incorporating ISA and TURBOchannel buses, along with a "private peripheral bus" offering 32-bit data transfers. A range of ports were provided - serial, parallel, audio and mouse ports - along with floppy and hard drive controllers. SCSI ports and drives, a CD-ROM drive, modem ports, internally fitted modems, and an Ethernet port were to be offered as options. 8 MB of RAM was specified, upgradeable to 64 MB. Two configurations were to be offered: a lower-priced configuration and a standard configuration, respectively offering 25 MHz and 33 MHz R3000A CPUs, hard drives of 150 MB and 210 MB, being delivered with 14-inch and 17-inch colour monitors, and being priced at $4,995 and $7,995. Although the workstation's CPU could not be upgraded, a future product with an upgradeable CPU module and using the EISA bus was planned. Subsequently, in 1993 and with Windows NT in beta testing, DeskStation introduced a range of workstation models in the Evolution RISC PC line, such as the rPC/40 and rPC/44, based on the R4000 and R4400 CPUs respectively. Configured with 16 MB of RAM, 512 KB of secondary cache memory, floppy drive, and 200 MB hard drive, the systems were fitted with a video adapter from S3 Graphics and were bundled with 14-inch colour monitors. The rPC/40 was priced at $3,995 and the rPC/44 at $4,995, aiming to compete with similarly priced Intel 80486-based machines running Windows NT. The most highly-specified model upon review in 1993, the rPC 444e/100, came with 64 MB of RAM, a 21-inch monitor, 500 MB SCSI hard drive and CD-ROM