Fax July 1996. A major breakthrough in the development of the modern facsimile system was the result of digital technology, where the analog signal from scanners was digitized and then compressed, resulting in the ability to transmit high rates of data across standard phone lines. The first digital fax machine was the Dacom Rapidfax first sold in late 1960s, which incorporated digital data compression technology developed by Lockheed for transmission of images from satellites. Group 3 and 4 faxes are digital formats, and take advantage of digital compression methods to greatly reduce transmission times. Fax Over IP (FoIP) can transmit and
Mark Fax College in 1946. From 1947 to 1972, Fax taught music theory at Howard University and served as director of the School of Music. Later, Fax became Acting Dean of Howard's College of Fine Arts. Concurrently, he served as music director at Washington's famed Asbury Methodist Church. Fax composed works for chorus, symphony, chamber ensemble, voice, piano and organ, in addition to two full-length operas, Christmas Miracle (1958) and 'Til Victory Is Won (1967). In the Washington limelight, he finally received public attention. "Washington Post" critic Paul Hume praised Fax's Sonata for Clarinet and Piano as "striking…difficult…a work of surprising contrapuntal