Communication systems and digital information
作者：Fatima Aoulad
1. The power of information
1.1. Finding information
1.1.1. Search engine
1.1.2. Hyperlinks
1.1.3. RSS
1.2. Managing information
1.3. Sharing information
1.3.1. Horizontal social networks
1.3.2. Vertical social networks
1.4. Creating information
1.4.1. web pages
1.4.2. Blogs
1.4.3. Wikis
2. User licenses
2.1. Open source
2.2. Closed source
2.3. Free
2.4. Propietary
2.5. Commercial
2.6. Freeware
2.7. Public domain
2.8. Trial
2.9. Demo
2.10. Creative Commons licenses
3. Internet security measures
3.1. Privacy
3.2. Internet worms
3.3. Cyberbulling
3.4. Viruses
3.5. http vs https protocol
3.6. Lost or stolen mobile phone
3.7. Phishing
3.8. Banners
3.9. Trojan horses
3.10. Botnet attacks.
4. Communicaton systems
4.1. Communication is the transmission of information from one place to another.
4.2. A transmission protocol is a set of rules that all the devices in a communication system follow so that they can understand each other and exchange information.
4.3. Analogue signal
4.4. Digital signal
5. Wired and Wireless communication
5.1. Digital devices
5.1.1. Hub
5.1.2. Switch
5.1.3. Router
5.1.4. Repeater
5.1.5. Ethernet network card
5.1.6. RJ45 connector
5.1.7. Infrared
5.1.8. Bluetooth
5.1.9. GPRS