1. Chapter 3 Data and Signals Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 2. To be transmitted, data must be transformed…

Slide 1Lecture 25 Physical Layer Ch 3: Data and Signals CPE 400 / 600 Computer Communication Networks Slides are modified from Behrouz A. Forouzan Slide 2 2 Lecture 25: Outline…

1. Chapter 3Data and Signals3.1 2. NoteTo be transmitted, data must betransformed to electromagnetic signals.3.2 3. 3-1 ANALOG AND DIGITALData can be analog or digital. The…

1. Chapter 3 Data and Signals Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 2. To be transmitted, data must be transformed…

1. 3.1 Chapter 3 Data and Signals Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 2. 3.2 To be transmitted, data must be transformed…

1. Chapter 3 Data and Signals3.1 2. NoteTo be transmitted, data must be transformed to electromagnetic signals.3.2 3. 3-1 ANALOG AND DIGITAL Data can be analog or digital.…

1. Chapter 3Data and Signals MELJUN CORTES3.1 2. NoteTo be transmitted, data must betransformed to electromagnetic signals.3.2 3. 3-1 ANALOG AND DIGITALData can be analog…

3.* Chapter 3 Data and Signals Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 3.* To be transmitted, data must be transformed…

Data and Signals To be transmitted, data must be transformed to electromagnetic signals. ANALOG AND DIGITAL Data can be analog or digital. The term analog data refers to…

A Communications Model * 3.* Data Communications Model * 3.* 1.* 1-1 DATA COMMUNICATIONS The term telecommunication means communication at a distance. The word data refers…