On 05/24/2016 08:48 PM, Jon Elson wrote: > For sure! The 360/30 was an 8 BIT machine, 8-bit memory, 8-bit data > paths, etc. Really hobbled the performance, and restricted the > peripherals that could be attached. The models /22 and /25 had 16-bit > memory and data paths.
Do you mean the 360/20? On the topic, were the 20 and 40 the only members of System 360 to use TROS? I remember picking up the programming manual for a Model 20 and realizing that I'd essentially have to re-learn programming. 16 bit registers, stripped-down instruction set, no I/O channels, "substitute" instructions for regular 360 fare. A really strange thing was that the 1130 came out *after* the 360/20. --Chuck