My C100 is not as nice as the one on Wikipedia, but it’s fully working. The machine was used in a small GIS company as a server for two X terminals (probably HP 700X). It is equipped with 100-MHz PA-7200 CPU, 256 MB of RAM, 2-GB SCSI HDD, two additional 100-Mbit/s network NICs and a single-head version of the HP 8-bit frame-buffer card. The original owners used it with an external SCSI drive for user data and did regular backups using the internal tape drive. They didn’t delete anything from the internal system drive when they stopped using it (the drive has only about 10 megs of free space).
Owners were probably smokers so I had to clean the internals of the machine from the greasy dust. Fortunately, there was no visible corrosion on logic boards. Now it is ready for a fresh installation of the HP-UX operating system including the complete aC++ development environment.