COMPUTER NETWORKS & INTERNET - Πολυμέσα

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

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

3. DATA COMMUNICATION Characteristics: • Delivery Παράδοση • Accuracy Ακρίβεια • Timeliness Στη ακριβή χρονική σειρά

4. Communication Components • Μήνυμα Message • Αποστολεύς Sender • Παραλήπτης Receiver • Μέσον Medium • Πρωτόκολλο Protocol

5. NETWORKSDistributed processing • Security/Encapsulation • Distributed Databases • Faster Problem Solving • Security through Redundancy • Collaborative Processing

6. DATA COMMUNICATIONNetwork Criteria • Λειτουργία Performance • Αξιοπιστία Reliability • Ασφάλεια Security

7. Performance • Number of Users • Type of Transmission Medium • Hardware • Software

8. Reliability • Frequency of Failure • Recovery Time of a Network after failure • Catastrophe

9. Security • Unauthorized access • Viruses

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

11. PROTOCOLS AND STANDARDS • Protocols • Syntax • Semantics • Timing • Standards • De facto • proprietary - closed • nonproprietary - open • De jure

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)

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)

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

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)}

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. Για την Ελλάδα • ΕΕΤΤ (Εθνική Επιτροπή Τηλεπικοινωνιών και Ταχυδρομείων)