| Περίληψη: | This chapter deals with the Internet, its services and the impact of the use of these services.<br/><br/>Specifically the chapter includes section about:<br/>• The technological evolution of the Internet<br/>• The web technologies (architectures, protocol stack TCP / IP, onomatadosia)<br/>• The question of the transition from IPv4 to IPv6<br/>• The categories of Internet services<br/>• Basic and advanced Internet services<br/>• Convergence (converge) voice and data services (VoIP telephony - teleconference)<br/>• web programming languages<br/>• The participative web and services (blogs, multimedia sharing, social networking, wikis, etc.).<br/>• The benefits and risks of social networking services<br/>• The semantic web and the technologies that make up the<br/>• Virtualization infrastructure, cloud services and different types of (IaaS, PaaS, SaaS)<br/>• The Internet of Things<br/>• H internet governance and the issue of neutrality of the internet<br/>• A brief reference to the impact of the Internet in education, employment, public administration, health services and the economy
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