1. CPT 307 Online Data Communications Overview of Data Communications & Networking Module 2 Kevin Siminski, Instructor

2. Data Communication The Effectiveness of Data Comm. depends on: – Delivery – Accuracy – Timeliness

3. Data Communication (continued) Components Data Representation Direction of Data Flow

4. Five Components of Data Comm.

5. Direction of Data Flow - Simplex

6. Direction of Data Flow- Half-Duplex

7. Direction of Data Flow- Full-duplex

8. Networks Distributed Processing Network Criteria Physical Structures Categories of Networks

9. Connection Type- Point to Point

10. Connection Type- Multipoint Connection

11. Physical Topology

12. Mesh Topology

13. Star Topology

14. Bus Topology

15. Ring Topology

16. Hybrid Topology Combination of all the above network designs Usually the most common design today Cost effective

17. Network Categories

18. Local Area Network (LAN)

19. LAN (continued)

20. Metropolitan Area Network (MAN)

21. Wide Area Network (WAN)

22. Internet A Brief History The Internet Today

23. The Internet today

24. Protocols and Standards Protocols Standards Standards Organizations Internet Standards