On Tue, 28 May 2024, John via cctalk wrote:
Even putting aside what "handles IRQs" means here (yes, strictly speaking the IRQs on the IBM PC are handled by the BIOS and/or add-on drivers/utilties, but DOS most certainly makes use of the facilities provided,)
Installed add-on drivers/utilities become part of the OS. BIOS??!? "DOS est omnis divisa in partes tres: BIOS, BDOS, Command processor"
So what, then, consitutes a Real Operating System, and WHY?
-- Grumpy Ol' Fred ci...@xenosoft.com
