Do you remember the computer Stone Age time of CP/M, floppy disks and 64 KB RAM ? Then this old ad found at the daily wtf site will evoke some old memories:

Most people who need computers don’t have the time, or desire, to become full-time computer “wizards” [..] QDP-100 is a FULL-SCALE 8-bit computer, readily upgradeable to 16 bits as your business or professional information-processing needs grow. Is uses the IEEE S-100 bus, compatible with CP/M and MP/M disk operating systems. QDP-100 handles both floppy disks and hark disks to give you total software versatility