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Maestro I was the world's first integrated development environment for software.〔Computerwoche http://www.computerwoche.de/heftarchiv/1975/47/1205421/〕 It was developed by Softlab Munich. Softlab Munich originally called the software Program development system terminal (PET), but renamed it after Commodore International introduced a home computer called the Commodore PET in 1977. At one time there were 22,000 installations worldwide. The first USA installations were at Boeing in 1979 with eight Maestro I systems and Bank of America with 24 system and 576 developer terminals.〔Spiegel, January.17.1983, Page 71 http://www.spiegel.de/spiegel/print/d-14020896.html?name=Akten+auf+Knopfdruck〕 Until 1989 there were 6,000 installations in the Federal Republic of Germany (). Maestro I was the world leader in the field in the 1970s and 1980s. Maestro I holds a significant place in the history of technology. One of the last Maestro I systems is at the Museum of Information Technology at Arlington.〔Image credit: Museum of Information Technology at Arlington http://mit-a.com/fourphase.shtml〕 ==First presentation in 1975== Harald Wieler, copartner of Softlab Munich, developed the first prototype of the system, then named PET, in 1974 based on the Philips x 1150 data collection system. Originally a Four Phase System from the USA. Wieler was architect and programmer of the mainframe DOS operating system development, for Siemens licensed by Radio Corporation of America for Siemens. The objective in developing Maestro I was a hardware and software programming tool rentable for 1000 Deutsche Mark a month, about the same as a one family house in the Munich area at the time. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Maestro I」の詳細全文を読む スポンサード リンク
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