11 Oct
2010
11 Oct
'10
11:51 a.m.
From: William Donzelli
Sent: Monday, October 11, 2010 11:36 AM
> Just curious about the architecture: at the
programmer's level did it look
> like a primarily 8-bit machine, or a 16-bit machine which always processed 2
> bytes in sequence, or it would best be described as mixed 8/16?
S/3s worked with strings of bytes in memory,
basically. Very non-traditional.
Not for IBM. The 1401 was very much a character-oriented machine.
The S/3 was not, in general, programmed by user programmers in anything other
than RPG III, which went on to be the programming model for the System/3x and
AS 400 families; IIRC the original RPG was a 1401 program product.
Rich Alderson
Vintage Computing Sr. Server Engineer
Vulcan, Inc.
505 5th Avenue S, Suite 900
Seattle, WA 98104
mailto:RichA at vulcan.com
mailto:RichA at LivingComputerMuseum.org
http://www.PDPplanet.org/
http://www.LivingComputerMuseum.org/