, . , . . , .
TCP/IP. (2- 3-) ISO : IP - TCP - .
, , TCP/IP. .
TCP , , . TCP, , , . TCP IP. , : , TCP, IP.
TCP . , , . IP TCP, .
TCP/IP . , , .
(1- ) . TELNET, FTP, HTTP, SMTP, POP3, NNTP.
TELNET . TELNET . - telnet delta delta. TELNET . . .
FTP (File Transfer Protocol - ) TELNET. TCP/IP. TELNET TCP. , . FTP , , , .
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SMTP (Simple Mail Transfer Protocol - ) ( ) . , SMTP . SMTP , . SMTP . - .
(Post Office Protocol - , 3 ), - / . , . - .
HTTP (Hyper text transfer protocol - ) WWW (World Wide Web - ) - WWW. - , , . .
NNTP (Network News Transfer Protocol) - , .. , , . , . , .