Unit Overview

1
Unit Overview

• A2 Module 4
• Processing and Programming Techniques
• A2 Module 5
• Advanced Systems Development
• A2 Module 6
• The Practical Project

2
Module 5

• 14.1 Applications and Effects
• 14.2 Databases
• 14.3 Systems Development
• 14.4 Hardware Devices
• 14.5 Networking

3
Unit 14.5 Networking

• Baseband and broadband modes of network operation
• Synchronous data transmission
• Time-division multiplexing
• Circuit switching
• Packet-switching
• Datagram
• virtual circuit
• Asynchronous Transmission Mode (ATM)
• Standard Protocols
• TCP/IP protocol stack
• Sockets
• Local Area Networks
• Types of cable

• Topology
• Bus
• Ring
• Star
• Switched Ethernet and
• Hubs
• Segment
• Bridge
• Peer-to-peer networking
• Wide Area Networks
• Electronic Data Interchange (EDI)
• Value-Added Network (VAN) providers
• On-line service providers
• Internet Service Providers (ISP)
• Internet

• Connecting to a wide area network
• leased line
• ISDN
• cable modem
• dial-up line and modem
• Asymmetric Digital Subscriber Line (ADSL)
• CODEC
• Inter-networking
• Routers / Gateways
• The Internet and its Uses
• World Wide Web (WWW)
• Internet registries and
• Internet registrars
• Client / server model of Internet.
• HTTP protocol
• Hyperlinks
• Web site
• Web page construction
• The organisation of Web pages on a Web site

• Telnet
• Role of URLs in retrieval of Web documents
• Internet search engines
• Web browser
• Java and applets
• Active Server Pages (ASP)
• E-mail
• Usenet
• Internet Relay Chat (IRC)
• Videoconferencing
• On-line shopping and banking
• Moral, Ethical, Social and Cultural Issues
• Security and the Internet
• Firewalls
• Encryption
• Digital certificates