[comp.sys.ibm.pc.hardware] XT graphics card

derrick@ritcsh.csh.rit.edu (Derrick Williams) (02/18/91)

 I am working on a z80 breadboard, and I would like to implement a video
display for it. I dug up an old IBM PC mono monitor, the ones the original
IBM PC's came with.
 As the 8088 and Z80's are similar, I would like to use a graphics card
to use the monitor.
 However, I do not understand the relationship between the cpu and the
graphics card, which does what, what the graphics card is capable of, 
and so on. I hear that I can get a monochrome card pretty cheaply for an
XT bus. I would be grateful to receive the pinouts of the XT bus, and
technical information on how to control a graphics card. 
 I have never owned an IBM PC or gotten intiminate with them, so I'm
afraid I may appear ignorant in some respects. I would be happy if that
is corrected :-).

                                                       Much thanks,

                                                        Derrick