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With lack of highfrequency components less bandwidthrequiredWith no dc component ac coupling via transformer Amplitudeshift keying ASK Less susceptible to error than ASK the difference frequen. Physical Layer. (Data and Signals). University of Nevada – Reno. Computer Science & Engineering Department. Fall . 2010. CPE 400 / 600. Computer Communication Networks. slides are modified from . Data . Transmission . Data Transmission. What we've got here is failure to communicate. . . Paul Newman in . Cool Hand Luke. Data Transmission. The successful transmission of data depends on two factors:. Data . Transmission . Data Transmission. What we've got here is failure to communicate. . . Paul Newman in . Cool Hand Luke. Data Transmission. The successful transmission of data depends on two factors:. Converting . digital data to a bandpass analog signal is traditionally called . digital-to-analog . conversion. . Converting . a low-pass analog signal to a bandpass analog . signal is . traditionally called analog-to-analog conversion. . BJ Furman. 21APR2016. DAC and ADC. Digital-to-Analog Conversion (DAC). Converts a binary . value to . a scaled ‘analog’ voltage. Used for controlling systems that require an analog input. . DC servo motor. 2. Physical Transmission. Wireless media. 3. Transmission is sent and received through invisible waves. Less expensive than copper or fiber optic lines. . Allows the user to move freely around the office or campus and still remain connected to the network. Electronics in Music. Intro. Basic Analog Electronics. Digital Audio . Edison Phonograph - 1879. Cylindrical Phonogram . (Thomas Edison 1877 ). (Youtube video). Acoustic Recording Session ca. 1920. Voltage (Potential Drop). (Data and Signals). University of Nevada – Reno. Computer Science & Engineering Department. Fall . 2010. CPE 400 / 600. Computer Communication Networks. slides are modified from . Behrouz A. Forouzan. Chapter 8. Overview. Digital Convergence. Analog and Digital Signals. Digital Publishing. E-Text. E-Reader. Digital Media. Protection of Digital Property. Digital Convergence. Single Unifying Device to Meet Digital Needs. . Transmission Basics - Aseel AlHadlaq. Data vs Signal. Data – information formatted in human/machine readable form . examples: voice, music, image, file . Signal – electric or electromagnetic representation of data . Networks are used for data communications . Definition. : . A computer network can be defined as a collection of nodes. A . node . can be any device capable of transmitting or receiving data. The . communicating . Announcements and Outline. Recap. Physical Layer. Circuits/Media. Outline. Physical Layer. Digital Transmission (Digital Data). Analog Transmission (Digital Data). Digital Transmission (Analog Data). Department of Computer Engineering. Kasetsart University. 01204325 Data Communications and Computer Networks. Based on . lecture materials from . Data Communications and Networking, 5. th. ed.,. Behrouz A. . 2. nd. . semester . 1439-1440. 205NET CLO. 1-Introduction to Communication Systems and Networks architecture OSI Reference Model.. 2- Data Transmission Principles. 3- Transmission medias. 4- Data modulation and encoding.