Recorded Magnetic Tape for Information Interchange (1600 CPI, Phase Encoded)* (Proposed American National Standard) CACM November, 1970 input-output, magnetic tape, information interchange, measurement, instrumentation, phase encoded recording 2.49 6.35 CA701107 JB February 9, 1978 4:49 PM 1971 5 1971 1971 5 1971 1971 5 1971