19 Jan
2006
19 Jan
'06
3:28 p.m.
On 1/19/2006 at 8:12 PM ard at p850ug1.demon.co.uk wrote:
IIRC the PGA monitor has analogue inputs, and does what
you'd expect.
Yup, it is indeed analogue.
Alas my PGA techref doesn't contain the BIOS source
or the source for the
firmware for the 8088 on the card. Actually, _is_ there a BIOS for the
PGA card? It's been a long time since I read that techref, but I thought
it exactly emulated the CGA card and would therefore use the normal CGA
bios (in the mainboard ROMs). To do anything more fancy you loaded
special software from disk.
There was a PROM on the PGA, but it was for the onboard 8088. Probably no
BIOS per se. Probably the first shot in the "my graphics adapter has more
computational power than my motherboard" modern trend, although in the case
of the PGA, it was just an 8088 on the adapter, not anything fancier.
Cheers,
Chuck