COMPUTER NETWORKS & INTERNET - Πολυμέσα

Παρουσίαση με θέμα: "COMPUTER NETWORKS & INTERNET - Πολυμέσα"— Μεταγράφημα παρουσίασης:

1 COMPUTER NETWORKS & INTERNET - Πολυμέσα
Books: Computer Networking and the Internet 5th Edition by Fred Halsall, Edit. Addison Wesley Τεχνολογίες Διαδικτύου Χ. Δουληγέρης, Ε. Κοπανάκη, Ρ. Μαυροπόδη, Eκδ. Νηρηϊδες Computer Networks and Internets Douglas E. Gomer, Edit. Prentice Hall Τεχνολογία Πολυμέσων Σ.Ν. Δημητριάδης, Α.Σ. Πομπόρτσης, Ε.Γ. Τριανταφύλλου, Eκδ. Τζιόλα Data communications and Networking Behrouz A. Forouzan, Edit. Mc Graw Hill Media Coding and Content Processing By Ralf Steinmetz and Klara Nahrstedt, Edit. IMSC Press Multimedia Series 17 February 2019

2 COMPUTER NETWORKS & INTERNET - Πολυμέσα
Books: Managing Multimedia, book1 People & processes, book2 Technical Issues by Elaine England & Andy Finney, Edit. Addison Wesley Understanding Networking Multimedia - Applications and Technology by Francois Fluckiger, Edit. Prentice Hall Multimedia Communications Protocols and Applications by Franklin Kuo, Wolfgang Effelsberg, J.J. Garcia-Luna-Aceves, Edit. Prentice Hall PTR 17 February 2019

3 DATA COMMUNICATION Characteristics: Delivery Παράδοση
Accuracy Ακρίβεια Timeliness Στη ακριβή χρονική σειρά 17 February 2019

4 Communication Components
Μήνυμα Message Αποστολεύς Sender Παραλήπτης Receiver Μέσον Medium Πρωτόκολλο Protocol 17 February 2019

5 NETWORKS Distributed processing
Security/Encapsulation Distributed Databases Faster Problem Solving Security through Redundancy Collaborative Processing 17 February 2019

6 DATA COMMUNICATION Network Criteria
Λειτουργία Performance Αξιοπιστία Reliability Ασφάλεια Security 17 February 2019

7 Performance Number of Users Type of Transmission Medium Hardware
Software 17 February 2019

8 Reliability Frequency of Failure
Recovery Time of a Network after failure Catastrophe 17 February 2019

9 Security Unauthorized access Viruses 17 February 2019

10 Applications Marketing and sales Financial Services
Manufacturing (CAD, CAM, CAE) Electronic Messaging Directory Services Information Services Electronic Data Interchange (EDI) Teleconferencing Cellular telephone Cable Television 17 February 2019

11 PROTOCOLS AND STANDARDS
Syntax Semantics Timing Standards De facto proprietary - closed nonproprietary - open De jure 17 February 2019

12 STANDARDS ORGANIZATIONS
Standards Creation Committees : International standards organization (ISO) (Δίκτυα) International telecommunications Union- Telecommunication Standards Sector (ITU-T, formerly CCITT) (Τηλεπικοινωνίες) The American National Standards Institute (ANSI) (Τηλεπικοινωνίες) The Institute of Electrical and Electronic Engineers (IEEE) (Βιομηχανία Υπιλογιστών) 17 February 2019

13 STANDARDS AND ORGANIZATIONS
The Electronic Industries Association (EIA) (Βιομηχανία Υπολογιστών) Telcordia (Formerly Bellcore from Bell Labs) (Τηλεπικοινωνίες) European Computer Manufacturers Association (ECMA) Conference European of Post and Telecommunications (CEPT) 17 February 2019

14 STANDARDS AND ORGANIZATIONS
International Engineering Task Force (IETF) (Προτυποποίηση σε Τοπικά Δίκτυα) World Wide Web Consortium (W3C) 17 February 2019

15 FORUMS Frame Relay Forum ATM Forum and ATM Consortium
Internet Society (ISOC) and Internet Engineering Task Force (IETF) {Development of a Single Management Protocol (SNMP)} 17 February 2019

16 Regulatory Agencies Federal Communications Commission (FCC):
To review rate and service-charge applications made by telegraph and telephone providers To review the technical specifications of communications hardware To establish reasonable common carrier rates of return To divide and allocate radio frequencies To assign carrier frequencies for radio and television broadcasts 17 February 2019

17 Για την Ελλάδα ΕΕΤΤ (Εθνική Επιτροπή Τηλεπικοινωνιών και Ταχυδρομείων)
17 February 2019