100	5.0
2400	Unix
2401	Windows
2402	VM
2403	Bull
2404	Macintosh
2405	TOPS-20
2406	VMS
2407	OS/2
2408	MVS (IBM)
2409	MVS (Interlink)
2410	Other
2411	Auto
2412	Windows NT
2413	Tandem
2414	AS/400
2415	OS9
2416	NetWare