TY - BOOK AU - Thurwachter,Charles N. TI - Data and telecommunications : systems and applications SN - 0137939108 U1 - 621.C57 PY - 2000/// CY - Upper Saddle River, N.J. PB - Prentice Hall KW - Data transmission systems KW - Computer networks N1 - Fundamental concepts - - Electromagnetic signals - - Metallic media - - Optical media - - Antennas - - Signal and fourier analysis - - Amplitude modulation - - Amplitude modulation and demodulation - - Angle modulation and demodulation - - Pulse modulation - - Multiplexing - - Coding - - Digital modulation - - Open system interconnection model - - Networking hardware - - Telecommunications - - Three protocols ER -