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IBM PC DOS
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=== {{anchor|2000}}PC DOS 2000 === The most recent retail release was PC DOS 2000 – released from Austin in 1998 – which found its niche in the [[embedded software]] market and elsewhere. PC DOS 2000 is a [[Slipstream (computing)|slipstream]] of 7.0 with [[Year 2000 problem|Y2K]] and other fixes applied. To applications, PC DOS 2000 reports itself as "IBM PC DOS 7.00, revision 1", in contrast to the original PC DOS 7, which reported itself as "IBM PC DOS 7.00, revision 0".<ref group="nb" name="NB_OEM"/> PC-DOS 2000 was the last version of IBM PC-DOS that was sold at retail. IBM advertised it as a Y2K compliant DOS. As it reports itself as "IBM PC-DOS 7 Revision 1", it is often referred to as "IBM PC-DOS7R1" or just "PC-DOS7R1". [[Hitachi]] used PC DOS 2000 in their legacy ''Drive Fitness Test'' (4.15) and ''Hitachi Feature Tool'' (2.15) until 2009.<ref name="HGST_2009"/> [[ThinkPad]] products had a copy of the latest version of PC DOS in their Rescue and Recovery partition.<ref name="Lenovo"/>
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