1 / 32

Understanding Network Computing: Functions, Feasibility, Analysis

This chapter explores the functions, feasibility, and analysis of network computing, covering topics such as network discovery, communication, collaboration, and network analysis. It also discusses enterprise networking goals, network types and topologies, transmission characteristics, protocols, interfaces, media, lines, and network security.

dwagner
Download Presentation

Understanding Network Computing: Functions, Feasibility, Analysis

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 5 Network Computing

  2. Agenda • Functions • Feasibility • Analysis

  3. Network Functions • Discovery • Communication • Collaboration

  4. Discovery • Internet, Web • Software agents, intelligent agents • Data warehouse and data mining • Characteristics • Open • Resourceful • Efficient • Dynamic

  5. Communication • Internet, Intranet, Extranet • Real-time, no distance • Voice, data, video

  6. Collaboration • Groupware, Group decision support systems, (GDSS), Intranet, Extranet • Workflow systems: administrative, purchasing, production, etc. • Screen sharing • Productivity, quality, timely

  7. Agenda • Functions • Feasibility • Analysis

  8. Enterprise Networking Goals • Connectivity • Portability • Interoperability • Scalability • Others?

  9. Network Feasibility • Technology • Hardware • Media • Software • Protocols • Operation • Horizontal, vertical, both • Culture, level of computing (individual, dept, etc.) • Legal • International, interstate • Cost/benefit • Corporate objectives

  10. Agenda • Functions • Feasibility • Analysis

  11. Network Analysis • Open system interconnection (OSI) • Type • Topology • Architecture • Transmission characteristic • Protocol • Interface • Media

  12. Network Analysis • Lines • Carrier • Service • Security • Code • Signal

  13. Open system interconnection (OSI) • Physical layer • Data link layer • Network layer • Transport layer • Session layer • Presentation layer • Application layer

  14. Network Types • Voice or data • Private branch exchange (PBX) • Centrex • LAN, MAN, WAN • Enterprise • Internet • Intranet • Extranet • Public, private

  15. Network Types • Valued added • Packet switching • Frame relay • Asynchronous transfer mode (ATM) • Integrated services digital network (ISDN) • Digital subscriber line (DSL) • Fiber distributed data interface • Virtual private network (VPN) • Backbone

  16. Network Types • Wireless • Cellular radio technology • Mobile computing • Personal communication system • Personal digital assistance

  17. Network Topologies • Token ring • Bus • Star • Hierarchical • Web • Hybrid

  18. Network Architecture • Client/server • Peer-to-peer

  19. Transmission characteristics • Speed • Bits per second (bps) • Baud rate (Hertz) • Direction • Simplex • Half-duplex • Full-duplex • Mode • Asynchronous • Synchronous • Accuracy • Horizontal • Vertical • Cyclic redundancy checking

  20. Protocols • Definition • Rules & procedures for transmission • Protocol types • Token passing • Carrier sense multiple access/collision detection • Transmission control protocol/internet protocol (TCP/IP) • Telnet • HTTP

  21. Interface • Transmission interfaces • Parallel data transfer • Serial data transfer • Universal asynchronous receiver/transmitter • Network interfaces • Interface card • Routers • Bridges • Gateways

  22. Interface • Modem • Multiplexer • Frequency division, time division, statistical time division, wavelength division • Front-end processor • Concentrator

  23. Network Media • Cable media • Fiber optics • Coaxial cable • Twisted-pair wire • Shield twisted-pair wire • Wireless • Microwave • Radio • Infrared • Satellite

  24. Network Lines • T1, T2, T3, T4, T5 • ISDN • DSL • Wireless

  25. Network Carriers • International • Long distance • Local • Wireless • Internet service provider

  26. Network Services • Types • In-house • Outsource • Services • Data • Voice • Video • Wireless

  27. Security • Transmission • Hardware • Software • Personnel • Procedure • Inventory • Physical & Logical

  28. Others • Codes • ASCII • EBCDIC • Unicode • Error corrections • ACK: acknowledge • NAK: negative acknowledge • Impact • Health, job, organization, social • Issues • Ethics, privacy, free speech, copy right, management

  29. Points to Remember • Functions • Feasibility • Analysis

  30. Discussion Questions • Why does an organization need a reliable network? • What are the general selection criteria for a network? • What kind networks are useful to an university such as CSUS? • What kind networks are needed by a company such as Intel?

  31. Discussion Questions • Design a network system for a university in terms of the following items: • Types • Topologies • Media • Lines • Carrier • Services • Security • Health • Privacy

  32. Assignment • Review chapter technology guides 1-2 & chapters 1- 5 • Read chapter technology guide 4 • Group assignment 1 due date: 10/2/01 • Research paper

More Related