Is a desktop?
It's a RISC server, HPPA, PA-RISC by HP, in my case the CPU is a PA8600@550Mhz.
I don't need a desktop (therefore I don't have a graphic card installed) since I use all of those machines remotely
through an X11 terminal. Typically a linux laptop, or a Windows notebook, used as X11 terminal.
The RISC family contains { POWER, PowerPC, POWER64, MIPS, MIPS64, ARM, SH, SPARC, HPPA, ...? }
I've not used a RISC desktop since I was at school, when the Acorn Archimedes were popular.
ARM ? Yup, I have a RISCPC/600, StrongARM@200Mhz, RISCOS v4.39
DOS-v6 and DOS-applications (e.g. Turbo Pascal, Turbo C, etc) are supported in hardware
by a guest PC card with a 486DX4@100Mhz on it.
(!PC-v3.08 on RISCOS v4.39, running Norton Commander on MSDOS v6.22)