__________________________1.2.    53

    .   , 
   ,     (. 1.14).  
          -
       ,  -
  . .

			
ӗ	^ 185		ri^II!	I	^

. 1.14.      Ethernet

,        -
 ,    (concentrator)   (hub).
  (hub  ,  )   ,   
      .

       -
   Ethernet, ArcNet, Token Ring, FDDI, Fast Ethernet, Gigabit Ethernet,
lOOVG-AnyLAN.

 ,       
    ,      ,  
 .    ,      -
 . ,  Ethernet      
,  ,     (. 1.15, ).  
Token Ring (. 1.15, )   ,   
,       ,      -
 .

. 1.15.   

         ,        -
 .

,       ,
   ,      -
    .    -
     . , ,  