Re: ancient OS history, ARM is sort of channeling the IBM 360

In article <v5s173$jl70$1@dont-email.me>, SFuld@alumni.cmu.edu.invalid
(Stephen Fuld) wrote:
 

John Dallman wrote:

 

Virtual memory was pretty new technology at the time, and
required a disk or drum. The central idea of /360 was having
the same ISA across a wide range of machines, and virtual
memory wasn't affordable at the low end at the time, AFAICS.

 
But IIRC even low end S/360s required a disk, at least to IPL(boot)
from.

 
Are you sure? Per Wikipedia, the lowest-end real S/360, the Model 30,
could run with only card equipment, running BPS, or with only tape
drives, under TOS.
 
>