“System 2.1”的意思、由来-开放百科全书

词条	System 2.1
释义	> Classic Mac OSSystem 2.1 {{R to related topic}}
随便看	John Peters (disc jockey) John Peters (pitcher) John Petersson John Petherbridge John Petit (disambiguation) John Petrie (footballer) John Petrie & Son John Pett John Petter Sando John Pettersson John Pettigrew John Pettigrew (businessman) John Pettitt John Petty (Primitive Methodist minister) John Peyre Thomas, Sr. John Peyre Thomas Sr. John P. Farley John P. Ferris John P. Finnegan John P. Fishwick, Jr. John P. Fishwick Jr. John P. Flaherty, Jr. John P. Furber House John P. Gallagher John Phakrases

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。