01561nam a2200313 a 4500 000077260 CO-BoSNA 20260706144626.0 160209s2015^^^^ag^ad^^fr^^^^^001^0^spa^d 9789871609901 Argentina 9789586829861 Colombia CO-BoSNA spa ag ck 621.382 C355c 23 Castro Lechtaler, Antonio Ricardo Comunicaciones y redes : para profesionales en sistemas de información / Castro Lechtaler, Fusario. Buenos Aires ; Bogotá : Alfaomega, ©2015. xxix, 836 páginas : ilustraciones, diagramas ; 24 cm. Incluye referencias bibliográficas e índice temático Las comunicaciones. Conceptos básicos -- Transmisión de señales -- Técnicas de la transmisión de la información -- Redes de telecomunicaciones -- Medios de comunicaciones -- La capa física -- Modulación y digitalización de señales -- Tecnologías para el transporte de señales -- Redes de área local -- Los protocolos de internet: las capas de red y de transporte. 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