On Thu, Jul 15, 2021 at 06:33:14AM +0000, Michael Kjörling wrote:
On 14 Jul 2021 22:21 -0400, from
douglas.mcilroy(a)dartmouth.edu (Douglas McIlroy):
IBM provided source code for the Fortran II
compiler.
More recently than that, for the original IBM PC anyone could get (I
believe) the complete schematics, detailed technical information, and
a commented ROM BIOS source code listing just by purchasing their
Technical Reference for, what, $50 or thereabouts?
Not just the original PC, I recall having access to the PC-AT version
at work a number of years ago. I've no idea what it cost.
DF