COMMUNICATION SYSTEMS AND DIGITAL INFORMATION

1. Internet security measures

1.1. Privacy

1.2. Internet worms

1.3. Cyberbulling

1.4. Viruses

1.5. http vs https protocol

1.6. Lost or stolen mobile phones

1.7. Phishing

1.8. Banners

1.9. Trojan horses

1.10. Botnet attacks

2. User licences

2.1. Open and closed source

2.2. Free

2.3. Propietary

2.4. Commercial

2.5. Freeware

2.6. Public domain

2.7. Trial

2.8. Demo

2.9. Creative common licenses

3. Communication systems

3.1. Communication: the transmission of information from one place to another.

3.2. Transmission protocol: a set of rules that all the devices in a communication system follow so that they can understan each other and exchange information.

3.3. Analogue signal.

3.4. Digital signal.

4. Wired and wireless communitation

4.1. Digital devices

4.1.1. Hub, switch, router, repeater, ethernet network card, RJ45 connector, infrared, bluetooth, GPRS.

5. Networks

5.1. BAN, PAN, LAN, CAN, MAN, WAN, SAN.

6. The internet

6.1. Standardisation

6.2. ISP

6.3. IP adress

6.4. Domain names

6.5. Domain name servers

6.6. TCP/IP protocol

7. Web evolution

7.1. Web 1.0

7.2. Web 2.0

7.3. Web 3.0

7.4. Digital transformation

8. The power of information

8.1. Finding information

8.1.1. Search engine

8.1.2. Hyperlinks

8.1.3. RSS

8.2. Managing information

8.3. Organising information

8.4. Sharing information

8.4.1. Horizontal and vertical social networks.

8.5. Creating information

8.5.1. Web pages

8.5.2. Blogs

8.5.3. Wikis