1. IMPACT OF IT ON COMMUNICATION

2. Technological tools can enhance the uniquely human ability to communicate. Technological tools can enhance the uniquely human ability to communicate. How one uses them determines their degree of effectiveness. How one uses them determines their degree of effectiveness.

3. COMMUNICATION SYSTEMS 1. Visual systems 2. Audio systems 3. Video systems 4. Audio- visual systems 5. Computer and related systems

4. 1. VISUAL SYSTEMS Kinds of visual aids: Film strips and slides Film strips and slides Overhead projector Overhead projector Facsimile Facsimile Magnetic boards Magnetic boards video cassettes video cassettes Signs & symbols Signs & symbols

5. Displays Displays Drawings Drawings Photographs Photographs Colors Colors Trademark Trademark Design Design Layout Layout

6. Posters Posters Hoardings Hoardings Cutting papers Cutting papers Boards Boards Graphs Graphs Diagrams Diagrams Maps Maps Cartograms Cartograms

7. Charts Charts Words Words Numbers Numbers Form and shapes Form and shapes

8. Advantages Quick communication Quick communication Memorizing effect Memorizing effect Comparison Comparison Bird’s eye view Bird’s eye view Revealing and appealing Revealing and appealing Stimulating Stimulating

9. Disadvantages Message limitation Message limitation Preparation Preparation Cost and time Cost and time

10. 2. AUDIO SYSTEMS Radio Radio Audio cassettes Audio cassettes Tape recorder Tape recorder Public address system Public address system

11. 3. audio- visual systems Television Television Cinema and film Cinema and film

12. 4. Computer and related systems 5. Understanding internet. 6. E- mails 7. Telephone systems- pagers, voice mails, speech recognition software.