This machine uses a Seagate st506 hard drive; I am quite certain that it could use many different drives through the interface.
John Pettitt adds:
Later black boxes were 8088 based and used hard disks up to 15MB.
RAIR was the first company in Europe to ship a 5.25 HD and the second world wide.
Mark Sharples reports:
The boards on this model would sometimes come free from the mother board during transit. The engineer would arrive from Rair, wait for the client to leave the room, and then simply drop the computer from about two inches off the desk to re-install the system.
We need more info about this computer ! If you designed, used, or have more info about this system,
please send us pictures or anything you might find useful.
BUILT IN LANGUAGE
Depends on the video terminal used
8085 (Later 8088)
3 MHz then 5 MHz (8088: 5 MHz)
from 64 kb to 512 kb
Commonly 80 chars. x 25 lines terminals
SIZE / WEIGHT
50.5 (W) x 40.5 (D) x 14 (H) cm.
from 2 to 8 serial ports (RS-232c / V24)
BUILT IN MEDIA
5''1/4 disk-drive (256 kb) 5 Mb ST-506 hard-disk, then 15 and 30 MB