About: http://webisa.webdatacommons.org/219608934

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	where can i find very old books about old operating systems like CP/M and DOS and other OS that worked on the 8086 ?? second question is not old books 20 year before and older should have an expired ...
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com