Environment: variety of computers including obsolete, old, middle-aged and new radio relay links, with low-capacity, low-powered radiocommunication also used; broadcast stations - 91 AM, 23 FM, 15 TV (13 repeaters); 8,620,000 radios; 6,386,000 TVs (5,680,000 color, 706,000 monochrome); satellite earth stations; 3 coaxial submarine cable; satellite earth stations and cable links to Bermuda; broadcast
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