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