System 12
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✎ Suggest a correctionExplains the function of System 12 components by visiting the various sites in Europe and America where they were developed or are produced. Introduces the actual people involved who explain this digital switching system.
Related films
Sources
- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, year, creator, length, format, sound, description
- 16mm Filmography (legacy record) — catalog record
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