Thecnical foundations of the Internet
Contents
1. Purpose
2. Why the companies are in the Internet
3. What the companies do in the Internet
4. Inbound marketing
5. E-Commerce
2
Purpose
To learn what are the main technical features of the Internet as a network of computers.
3
Networks
A network is a set of devices which can relate to each other and share resources.
4
Networks (II)
Internet is a broad, highly-distributed network of physical devices (computers, smartphones, tablets, etc) which can relate to each other in order to share contents and services.
What does it say
Wikipedia?
A computer network, or simply a network, is a collection of computers and other hardware components interconnected by communication channels that allow sharing of resources and information. Internet is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are linked by a broad array of electronic, wireless and optical networking technologies.
5
Networks (III)
To participate in a network some connection (communication) elements are needed: this is the hardware.
6
Networks (IV)
Some not-physical, logical elements are needed too: software applications which make this communication happen.
These software applications are of different kinds:
Network card drivers.
An Operating system in both connecting devices.
A communication protocol, or language which both connecting devices can speak. 7
Networks (V)
Operating systems in the device which connects to the Internet:
Windows, Linux, MAC OS, Solaris, UNIX, etc.
iOS, Android, Symbian, Windows Phone 7, Blackberry, etc.
8
Networks (VI)
Communication protocol.
Although in the beginning of the
Internet different alternatives of communication protocols where invented and used,