- Pulsar 9000 Computer
- Pulsar 9000 Orientation
- Pulsar 9000 Seeing What Works
- Pulsar 9000 Setup Procedure
- Pulsar 9000 Chassis Build
- Pulsar 9000 8″ Floppy Disk Drive
- Pulsar 9000 Solid State Drive Arrangement
- Pulsar 9000 A Real Hard Disk
- Using HD 5.25″ FDDs as 8″ Drive Substitutes
Pulsar was an Australian computing company located in Melbourne, Victoria. They made STD cards and computings systems based on the STD bus and often using TurboDOS.
TurboDOS is a multiuser/multiprocessor operating system that can execute CP/M programs.
Eight Z80 processors and two 80186 processors share an 8″ floppy drive and a SASI/SCSI hard disk, supporting 9 concurrent users. Each Z80 user gets their own 64k in which to run CP/M-80 programs, while the lucky 186 user scores 256kB in which to run CP/M-86 programs.
The master board, a 80186 board, loads the operating system from disk and, once it is up, it transfers the operating system to each of the slave cards.
All the rack-mounted cards are bona fide eighties cards. The rack and the 8″ drive are also of the time. The re-construction is new. I was able to find only very scant details of the Pulsar 9000, but i did have a complete set of cards and some software handbooks. It looked like a project!
