Can anyone tell me what these cards are for? HP 30145-60001 marked ATP AIB, HP 26069-60001 marked DEV HP-IB TRANSLATOR, HP 31262-69001 marked CHAN GIC. These measure 14"x 11" and have four edge connectors along the back edge. I searched th enet and didn't find mush info except that a couple of re-sellers have some for sale but they don't provice any additional info. One site did indicate that one of these might be for the HP 3000. Joe