OBTW, according to the best lead we have so far:
Quote:
Computer: DECpc 433dx LP with 33-MHz industry-standard 486 DX processor, 128-KB cache expandable to 256 KB, 8-MB (70 ns) RAM memory expandable to 65 MB, 426-MB, SCSI hard disk drive, 525-MB, 1/4-inch, SCSI tape drive, 3.5-inch (1.44-MB capacity) floppy disk drive, 1 IEEE-488 communications interface, 2 RS232C serial interfaces, 1 parallel printer interface, SVGA monitor with 512-KB video memory expandable to 1 MB.
I used to run HP Rocky Mountain Basic (RMS) around the same time frame that controlled IEEE-488 gear (HP test equipment), so it could indeed be native SCO software.