"FBA" <fauradon(a)mn.mediaone.net> wrote:
How can you tell about the original ROMs and 13 sector
disk?
Integer BASIC leaves the D0 and D8 ROM sockets empty; Applesoft BASIC
fills all the ROM sockets. In Integer BASIC systems, D0 may be filled
with the Programmer's Aid #1 ROM.
The difference between 13-sector and 16-sector Disk ][ controllers is
the two ROMs on the card -- I believe the 13-sector ROMs are called
"P5" and "P6" while the 16-sector ROMs are called "P5A" and
"P6A". I
can't remember whether the ICs are stamped with this however.
-Frank McConnell