On 7/8/2014 10:53 AM, Philip Belben wrote:
and,
a model M keyboard with working shift and enter keys
Are you sure? The keyboard I know as the "Model M" was the AT enhanced
keyboard (and with a different plug and slightly different trim, the
PS/2 keyboard). It is a total anachronism for the 5150. I'm not sure
it would even work with it!
Philip.
Other than UNIX did any DOS really support hardware on the smaller machines?
True Serial I/O was never handled under DOS. One can forgive the lack of
DOS on say a PDP 8, not on a cpu like 8088. Ben.