Gnat merged with Data Technology Industries in 1983. The floppy-drive version of the Gnat Pac was called the Extended System 8. The System 8 was followed by the System 9, which ran CP/M. The System 10 information below is from a brochure generously donated by a former Gnat employee.
Former employee Robert Carter, Jr., adds this:
“March 12, 2012 at 9:38 pm: We were CP/M from the beginning with the System 8, System 9 and System 10. Our license for CP/M was #10.
I’m just glad to see some reference to GNAT, somewhere. I remember meeting Jobs in Seattle at a convention, when he was displaying his early computer and we were displaying the System 8 and System 9, which were in the process of doing process control in the U&I Sugar plant in Moses Lake, WA. I didn’t really expect a reply, and, certainly, not this quickly.
For your amusement, the first GNAT was for the military, called the General Numeric Analysis Trainer. It was a 1-off, using (if I remember correctly) an 8000 chip.
Shortly after we introduced the System 10, a neighboring company introduced their fold-up portable computer. We grabbed one and had a look inside. The video board had the “GNAT” on the circuit board, but it was mirror image. When I brought this to that company’s attention, their response was, ‘Sue us.'”
Gary Oliver adds this:
“February 11, 2013 at 6:30 pm: I was also involved in that U&I project, though as a software developer. Spent many hours working with GNAT computers – still have the last System 10 (still works!) we used safely stored in my ‘museum’ (garage). They were truly remarkable machines for the time.”
Reader Jaye adds this:
Gnat Computers Gnat-Pac System 8 (1977, early micro)
Original Retail Price: $3,690
Base Configuration: 16K RAM, 2K ROM (16K max), front panel switches, serial and parallel ports
Important Options: dual 5.25-inch floppy disk drives, PL/M, BASIC, FORTRAN
Gnat Computers Gnat-Pac System 10 (1979?, micro)
Base Configuration: 4MHz Z80 CPU, 65K RAM, 2K ROM, 2 5.25-inch floppy drives, 2 serial and 1 parallel ports, integrated 12-inch monochrome monitor, integrated keyboard, CP/M 2.0
Video: 25 lines x 80 columns
Size and Weight: 21 x 21 x 13 inches, 42 lbs.
Important Options: AM9511 FPU, PL/1, BASIC, FORTRAN, COBOL, Pascal, C, IEEE 488 interface, real-time clock