» Internet
Internet makes only the infrastructure available. A use for the users results only from the fact that based on the structure of the Internets different services are to the user at the disposal. Thus the service of the World Wide Webs help the Internet at the beginning of the 1990er-Jahre only to the break-through. Also today always new services are still added. The most important and most well-known services are briefly described in the following table. For explanations in more detail see the respective articles.
| Service | Used minutes | Usual one of haven | Description | Applications | Portion of the global Datenverkehr* | |
|---|---|---|---|---|---|---|
| World Wide Web | Hypertext transfer Protocol (HTTP), hypertext transfer Protocol Secure (HTTPS) | 80, 443 | To the transmission of web pages | Webbrowser | 45 % | |
| Simple Mail Transfer Protocol (smtp), Post Office Protocol version 3 (POP3), Internet Message ACCESS Protocol (IMAP) | 25, 110, 143 | To the dispatch of electronic letters (enamels) | E-Mail Client, e.g. Microsoft Outlook or Mozilla Thunderbird | 7 % | ||
| File transmission (file transfer) | File Transfer Protocol (ftp) | 20, 21 | To the transmission of files | Ftp server and - Clients such as FileZilla | ||
| Dissolution of name | Domain Name System (DNS) | 53 | With this service names e.g. become. de.wikipedia.org in IP addresses translates | Mostly in the operating system integrates | ||
| Usenet | Network News Transfer Protocol (NNTP) | 119 | Panels to all erdenklichen topics | News Client, e.g. Microsoft Outlook Express or Mozilla Thunderbird | ||
| Telnet | Telnet Protocol | 23 | To the use of distant computers | under most operating systems available according to standard: telnet | ||
| SSH | SSH Protocol | 22 | To the coded use of distant computers | ssh, under Windows e.g. PuTTY or WinSCP | ||
| Peer ton Peer systems | BitTorrent, eDonkey, Gnutella, nearly TRACK | 6881 to 6889 (BitTorrent), 4661, 4662, 4665, 4672 (eDonkey). 6346 (Gnutella), 1214 (nearly TRACK) | e.g. Exchange stock exchanges for the change of files | Azureus, eMule, FrostWire, Kazaa Lite K++ | 24 % | |
| Internet Telefonie (VoIP) | H.323, session Initiation Protocol (SIP) | 1300 | Telephone | Skype, iChat, MSN of measuringclose (also Chat) | 12 % | |
| Video Chat | H.264, QuickTime Streaming | Video Telefonie | iChat, Ekiga | |||
| Virtual private network VPN | GRE, IPsec, PPTP | Coupling of LANs by Internet, optionally with coding and Authentizierung | OpenVPN | |||
| Internet radio | Radio hear send/ | Winamp, iTunes, Windows Media Player | 7 % (inclusive Videostreaming) | |||
| Wais | Z39.50 | An earlier Internet search service | ||||
| Gopher | Internet Gopher Protocol | 70 | Hypertext-similar news service | |||
| Internet Control Message Protocol (ICMP) | (none uses) | Exchange of error and information messages, diagnosis | e.g.: Ping | |||
| Network administration | Simple Network Management Protocol (SNMP) | 161 | , - Maintenance and - monitoring of network components e.g. serves the remote configuration like a routing | |||
| Time synchronisation | Network Time Protocol (NTP) | 123 | Serves the time alignment of computers and network components. | NTP DATE and/or NTP client (GNU/Linux) |
* The portions of the most important services of the global data traffic in the year 2004, according to a study, which was based on samples of 27 internationally active Carriern.
Chatdienste serve real time communication in writing over Internet.
| Service | Used minutes | Usual one of haven | Description | Applications | Portion of the global Datenverkehr* |
|---|---|---|---|---|---|
| Internet Relay Chat | IRC minutes | 194, 6667 | "Ur "- Chatdienst | Different Clientprogramme or Webchats, e.g. mIRC (Windows), XChat (Linux, and/or also Windows) | |
| Secure Internet live Conferencing | SILC minutes | 706 | safe Chatdienst | Different Clientprogramme, e.g. Gaim, Colloquy (Mac OS X), Silky, irssi | |
| Jabber | XMPP | 5222 | Decentralized Chatdienst | Different programs, e.g. Psi (Windows, Linux, Mac), Kopete (Linux) | |
| Instant Messaging | Different, minutes | depending upon system | Short messages from person to person, Clients support often also IP-Telefonie | Depending upon used system, e.g. ICQ/AIM, MSN of measuringclose, Yahoo! More measuringclosely, GaduGadu, GroupWise |
In the field of the disaster research surface covering abuses or losses of the Internets are very seriously taken (D-dangers). A collapse of the Internets or individual parts would have extensive consequences.
Into the 1990er the educating instances reacted to years in view of the spreading of the Internets as source of information and means of communication defensively. When it became clear that it did not concern a mode feature was offered, in schools and universities of programs, in order to prepare young people for competent handling the medium Internet. The promotion covers the following goals:
The influence of the Internet authority becomes apparent also in the industry, where even at Internet-based companies strong differences are recognizable in to what extent the mechanism of the Internets is understood and used productively.
With the rising spreading of the Internets the cases of Internet craze mehren themselves. That is, that the concerning cannot steer their Internet consumption any longer and despite problems (for example lack of sleep, marriage problems, financial problems) of far on-line are. This can have extensive consequences, like for example indebtedness and vocational descent. In addition, health damage as for instance lack of movement and wrong nutrition is possible.
The existence of one "computer craze "in the sense of a dependence on computer games (whether on-line or not) is disputed. However are from South Korea, where the plays already take a majority of the everyday life, in the meantime also some cases admits, in which players forgot a drinking. Several persons already died thereby at dehydrogenation
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