By the 1950s the success of digital electronic computers had spelled the end for most analog computing machines, but analog computers remain in use in some specialized applications such as education (control systems) and aircraft (slide rule). COUNT 2
QSN1 By what decade were analog computing devices rendered obsolete? ANS1 50s QSN2 Analog computers remain in use in what industries? ANS2 education (control systems) and aircraft (slide rule).