11 Mar
2023
11 Mar
'23
10:47 a.m.
On Mar 10, 2023, at 9:13 PM, Gavin Scott via cctalk
<cctalk(a)classiccmp.org> wrote:
On Fri, Mar 10, 2023 at 7:01 PM Jon Elson via cctalk
<cctalk(a)classiccmp.org> wrote:
I thought it was called BCP (Basic Control Program)? I just saw it mentioned once or
twice, never used it though I did come across an executable file on cards -- the 360/44
"Emulator" (for the missing SS instructions).
paul
On 3/10/23 13:00, Paul Koning via cctalk wrote:
> You mean DOS/360 as opposed to OS/360?
MFT was Multiprogramming with a Fixed number of
Tasks, MVT
was Multiprogramming with a Variable number of Tasks.
And all the OS/360 variants were so late that they introduced three
other operating systems as a stopgap to allow IBM to actually ship
systems that were usable by customers. First came Basic Operating
System/360 (BOS/360), which was pretty much cards in and out (plus
printer),