The hardware features of the QDP-300 were very close to those of the QDP-100 model. Apart from the shape of the case, the major differences were:
- An integrated help system,
- A cache memory to speed up the disk drives operations,
- A new motherboard design allowing the 6 Mhz. Z80-C microprocessor to be used.
The QDP-300 was backed by one-year on-site warranty performed by the General Electric Company.
Mark Penacho adds:
The Quasar Data Products QDP-300 was rebranded the TDS-300 (by QDP) and was used as the development system for the now defunct handheld computer company Telxon in the early 80's for their handheld devices.
The rebranding was a darker metal case (I think dark blue), and a blue front panel. Cosmetically, the TDS version looked nicer.
Roger Chalonec remembers:
I used these on US Navy ships. We ultimately had a 10meg hard drive in these I belive. We ran a pretty impressive database called MDBS (Micro Database Systems) out of Cleveland, OH.
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.
Quasar Data Products
BUILT IN LANGUAGE
Serial video terminal
80 columns x 25 lines
BUILT IN MEDIA
Dual 8'' 1.2 MB F.D. drives Optional 10 or 15 MB internal hard disk, or 30 MB external