{HEAD ~ Examples} of a computer readable medium include a semiconductor or solid state memory, magnetic tape, a removable computer diskette, a random access memory , a read only memory , {TAIL ~ a rigid magnetic disk} and an optical disk 
{ HEAD ~ Examples } of a computer readable medium include a semiconductor or solid state memory , magnetic tape , a removable computer diskette , a random access memory , a read only memory , { TAIL ~ a rigid magnetic disk } and an optical disk
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH