PPT-Computer Networks Physical

Computer Networks Physical Layer Based on slides from Zoltán Ács ELTE and D Choffnes Northeastern U Philippa Gill from StonyBrook University Revised in 201 8 by S Laki. SATISH MISHRA,PGT CS ,KV TRIMULGHERRY. A network is any collection of independent computers that communicate with one another over a shared network medium. A computer network is a collection of two or more connected computers. . Rodrigo Fonseca (. rfonseca. ). http://www.cs.brown.edu/courses/cs168. cs168tas@cs.brown.edu. Based partly on lecture notes by David . Mazi. ères. , Phil Levis, John . Jannotti. , Peterson & Davie. (Part 2). Data Encoding Techniques. Advanced Computer Networks. D. 12. . Interpreting Signals. DCC 9. th. Ed.. Stallings. Advanced Computer Networks . Data Encoding. 2. Data Encoding Techniques. Digital Data, Analog Signals . Rodrigo Fonseca (. rfonseca. ). http://www.cs.brown.edu/courses/cs168. Based partly on lecture notes by David . Mazières. , Phil Levis, John . Jannotti. , Peterson & Davie. Cast. Instructor: Rodrigo Fonseca (. (Part 1). Computer Networks. Spring 20. 13. . Physical Layer Outline . (Part 1). Definitions. Nyquist. Theorem - noiseless. Shannon’s Result – with noise. Analog versus Digital . Amplifier versus Repeater. Advanced Computer Networks . Cellular/Mobile Wireless Outline. Cellular Architecture. Cellular Standards. GSM, 2G, 2.5G and 3G. Mobile Definitions. Agents, addresses, correspondent. Mobile Architecture. Jon Chippindall. www.primarycomputing.co.uk. CAS Master Teacher. @. drchips. _ . Computing national curriculum 2014. understand computer networks including the internet; how they can provide multiple services, such as the world wide web; and the opportunities they offer for communication and collaboration . Networks. , network . characteristics, . data . transmission. Learning Objectives. Explain what networks are. Identify network characteristics. Understand how data is transmitted over a network. CMPTR Chapter 4: Computer Networks. Learning Outcomes:. Understand what a network is.. Identify types of networks.. Explore types of network formations.. Networks. Networks are two or more machines linked together to share files. At . home, your computer might be connected to its own printer and scanner. This works well as you are the only person who will be using them. A computer which isn't connected to a network is known as a '. Ali Cole. Charly. . Mccown. Madison . Kutchey. Xavier . henes. Definition. A directed network based on the structure of connections within an organism's brain. Many inputs and only a couple outputs. D12. . TinyOS. Applications Outline. AntiTheft. . Example . {done in gradual pieces}. LEDs, timer, booting. Sensing Example. Light Sensor. Wiring to . AntiTheft. Single Hop Networks. Active Messages interface. 1. Local Area Networks. Aloha. Slotted Aloha. CSMA (non-persistent, 1-persistent, . p-persistent). CSMA/CD. Ethernet. Token Ring. Networks: Local Area Networks. 2. Data Link. Layer. 802.3. Advanced Computer Networks. C13. . Interpreting Signals. DCC 9. th. Ed.. Stallings. Advanced Computer Networks . Data Encoding. 2. Data Encoding Techniques. Digital Data, Analog Signals . [. modem. 1. An Introduction to Computer Networks, Peter L . Dordal. , Release 1.9.21. Chapter 1. An Overview of Networks. Local Area . Networks . (LANs), . are the “physical” networks that provide the connection between .