7
: . web-. .
: , , web- HTML.
(internet) - , , , TCP/IP.
- , .
, . . OSI.
OSI .
(, , ) .
.
.
.
- , .
.
.
TCP/IP - , . TCP (Transmission Control Protocol) . IP (Internet Protocol) . TCP , . TCP .
TCP/IP :
(MAC-),
(IP-)
(DNS-)
, - - , , 11-0-17-3D-BC-01. , .
IP- - , , , 109.26.17.100. - , , IP-. .
DNS- , , , , SERV1.IBM.COM. , , FTP elnet.
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I - , . , Internet - , , .. . - FTP (File Transfer Protocol), web- - HTTP(HyperText Transfer Protocol), - SMTP, POP3, IMAP ..
, 0 65534. . , FTP 21, HTTP - 80, SMTP - 25, POP3 - 110.
, TCP : IP- . ( ).
, URL (Universal Resource Locator).
URL :
, .. (http, gopher, WAIS, ftp, file, telnet .);
( - );
.
: http://support.vrn.ru/archive/index.html.
.
WWW (World Wide Web - ) , , , , HTTP HTML.
, , , .
- , : , , , . - .
, .
- , .
(gateway)- , .
(ISP -Internet Service Provider) , , . , .
HTML
(HyperText Markup Language (HTML)) WEB. HTML- web-. , HTML- web-, HTML , .
HTML , , . , , , . .
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HTML . web-. web-, Internet Explorer, Opera, Chrome .
HTML
<html>
<head>
<title> </title>
</head>
<body>
<p> Hello World! </p>
</body>
</html>
:
<html></html> , .
<head></head> . , , , .
<title></title> , .
<body></body> web-.
Hello World!
HTML 5 , . . <table>, <tr>, <th> <td>.
<table border="1">
<caption> </caption>
<tr>
<th></th>
<th></th>
</tr>
<tr>
<td></td>
<td>500 .</td>
</tr>
</table>
, <caption>, <table>. , <tr>. <th> <td>, .
<th> . . <td> . <th> , .
border <table> , . 1 , , .
HTML5 . . , , HTML, Adobe Flash, , . HTML5 . HTML5.
HTML . , . , .
CSS
