Similarly, the term device driver is intended to refer to {HEAD ~ not only the specific PC/MS DOS device drivers} to be discussed in more detail below, but also to their functional equivalents implemented in {TAIL ~ other operating systems} 
Similarly , the term device driver is intended to refer to { HEAD ~ not only the specific PC / MS DOS device drivers } to be discussed in more detail below , but also to their functional equivalents implemented in { TAIL ~ other operating systems }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL