2. Topics Communication Technology Internet Data Security Information Misuse Information Systems Technological Trends Impact of IT

3. Communication Technology Data Communication – Transmission of data between two or more computers Linked Point to Point - Broadcast

4. Communication Technology Configurations LAN WAN MAN Stand Alone – Not attached to Network Hub – Central connecting device

5. Communication Technology Layout Star Bus Ring Channel – Medium to transfer data

6. Communication Technology Data Flow Simplex Half Duplex Full Duplex

7. Communication Technology Media Coaxial UTP Fibre Optic Microwave Wireless/Bluetooth/IR/Hotspot

8. Communication Technology Channel Speed -Amount of info channel can handle at one time

9. Internet Internet – Biggest network, changed from military purposes to commerce, government, educational and entertainment

10. Internet Services Email IRC WWW FTP Newsgroups

11. Internet Connection ISP Dialup ISDN ASDL Cable

12. Internet Communication Terminology TCP/IP Host IP HTML URL Website

13. Internet Browser Webpage Home page Hyper link Search Engine Electronic commerce

14. Internet Intranet – Private network based on internet standards Distribute documents Share information Enable Teleconferencing Extranet – formed by allowing others the authorized use to an intranet

15. Data Security Protection of computer hardware/software from deliberate or accidental damage

16. Data Security External Sources – Protect From: Theft Power outages Natural Disaster Fire Dust/Humidity

17. Data Security External Sources – How? Cameras Alarms Biometrics Access codes Fireproof Cabinets UPS

18. Data Security Internal Sources – Protect From: Clerical Errors Files erased/corrupted Viruses Hackers,Unauthorized access Revenge

19. Data Security Internal Sources – How? Backup Passwords Network Logging Encryption Antivirus Firewalls

20. Information Misuse Information: Used only for intended purpose Owner has right to examine any data Must be accurate Security should be in place Info not kept longer than necessary Propaganda Computer Fraud Computer Crime Unauthorized Access Electronic Eavesdropping Industrial espionage Surveillance Copyright and Piracy

21. Information Misuse Propaganda Computer Fraud Computer Crime Unauthorized Access Electronic Eavesdropping Industrial espionage Surveillance Copyright and Piracy

22. Information Misuse Copyright and Piracy

23. Information Systems Computerized system responsible for collection, processing and distribution of information.

24. Information Systems Types of computer systems: User Single user Multi user Task Single tasking Multi tasking

25. Information Systems Types of computer systems: Personal Computer Portable Computer Network Computers Mainframe Super Computer

26. Information Systems Areas: Commerce Banking Manufacturing Science and Technology Education Law Enforcement

27. Technological Trends AI Design CADD CAM CAE Business Teleconferencing Telemarketing

28. Technological Trends Desktop Publishing

29. Impact of IT Changes in Workplace Loss of Jobs/Retraining Health Concerns RSI Back Eye Stress

30. Impact of IT Environment Power Disposing of technology Legal Effects