74    1      

 

  (Presentation layer)     -
    ,      .  
  ,     -
,      .   
       
         , 
 ASCII  EBCDIC.        -
 ,      -
.      .    
 Secure Socket Layer (SSL),     -
      TCP/IP.

 

  (Application layer)      
 ,       -
   ,   ,   
Web-,      , ,  -
   .  ,   -
 ,    (message).

      . 
        
 : NCP    Novell NetWare, SMB  Microsoft
Windows NT, NFS, FTP  TFTP,    TCP/IP.

   

    OSI        :

  ,      ,  
,     .

    ,      -
,          -
     . , 
  FDDI       -
     .

    ,     -
         
.             
 ,        .
,   Ethernet    lOOVG-AnyLAN  -
     ,   -
,    .

   ,     -
    .    -
,       
.