CE 536 - Networking and Microcomputer Systems
Blair R. Bernhardt, Ed.D.
brb0@lehigh.edu
http://www.lehigh.edu/~brb0
Creating a New Civilization: The Politics of the Third Wave by Alvin and Heidi Toffler
The First Wave: The Agricultural Revolution
The Second Wave: The Industrial Revolution
The Third Wave: The Information Revolution
"... the computer, and the television, and the telephone, are merging into one ... this industry transformation will transform not just the way Bell Atlantic behaves, but the way the public behaves - the way that we work, and the way that we play, and the way that we learn ..."
Raymond Smith, CEO and Chairman, Bell Atlantic Corporation - Speaking at National Net '94, April 7, 1994, Washington, DC
Overview of Networking and Microcomputer Systems
Microcomputer Systems
Microcomputer Needs: What must the computer do?
- Application Needs
- Component Needs
Computer Hardware
- System Unit - case, motherboard, ports
- CPU
- Memory
- Disk Drives
- Input Devices
- Graphics Card
- Monitor
- CD-ROM Drives
- DVD Drives
- Backup/Archive Devices
- Sound Cards
- Communications
Adding New/Upgrading Old Components
- Device Drivers
- Plug and Play
- Device Conflicts
Operating Systems
- DOS/Windows 3.x
- Windows 95/98
- Windows NT/2000
Troubleshooting
- Fixing Start-up Problems
- Restarting a Crashed Computer
- Closing a Crashed Application
- Finding Disk Space
- Keyboard Problems
- Mouse Problems
- Monitor Problems
- Printer Problems
- Modem Problems
- Backing Up the System
- Handling Viruses
Overview of Networking
Local Area Networks provide:
- Shared Resources
- Connectivity
- Data and Software Security
- Data and Software Backup
- Access to Network Applications
Local Area Network Topologies, Media, and Components
- Ethernet (actually, IEEE 802.3)
10Base2 (ThinNet)
10BaseT (Twisted Pair)
· Token Ring
Interconnecting Local Area Networks
- Bridges - between similar LANs
- Routers - between dissimilar LANs
- Gateways - between LANs with completely different protocols
Backbone Networks - interconnect other networks
- PC LANs
- Workstation LANs
- Mainframe LANs
- Topologies:
- Ethernet
- Token Ring
- FDDI (Fiber-Distributed Data Interface)
- ATM (Asynchronous Transfer Mode)
Remote Communications
- Modems - different protocols and speeds (phone line)
- ISDN - Integrated Services Digital Network (phone line)
- Terminal Servers
- PPP (Point-to-Point Protocol) replaces SLIP (Serial Line Interface Protocol)
- Cable Modems - (cable TV line)
- ADSL - Asymmetric Digital Subscriber Line (phone line)
Models of Network Architectures
- OSI (Open Systems Interconnection) - developed by the ISO (International Standards Organization)
- TCP/IP (Transmission Control Protocol/Internet Protocol) - developed by the Advanced Research Projects Agency (ARPA) of the Department of Defense
- SNA (Systems Network Architecture) - IBM proprietary
Networking Protocols
The Internet
- Internet Service Providers
- Regional Networks
- National/International Networks
- ANSnet
- MCI WorldCOM
- Sprint
- AT&T
- Internet Resources
Legal, Social, and Ethical Implications of Networking
Assignment for Class 2 ...