On 31 Jul 2009 at 0:47, Philip Leonard WVØT wrote: > It was BCD, sort of. The six "rows" were labeled "B", "A", "8", "4", > "2", "1". Bob Bradlee indicates that there were two "hidden" rows of bits. But yeah, BA8421 is what I remember. Kind of like the bit naming on 7 track tape or a 1401. --Chuck