D HISTORIC                          	Historic
D IFS-5.1                           	ifs-5.1
D SONY535-.5                        	sony535-0.5
D TOSHIBA                           	toshiba
D UMSDOS                            	umsdos
D V1.0                              	v1.0
D V1.1                              	v1.1
D V1.2                              	v1.2