The computer system 12 wherein said cartridge includes {HEAD ~ a recess} and wherein said holding means includes a lever having {TAIL ~ an end} which hooks into said recess in the cartridge 
The computer system 12 wherein said cartridge includes { HEAD ~ a recess } and wherein said holding means includes a lever having { TAIL ~ an end } which hooks into said recess in the cartridge
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH