,
(hardware), , , , , (, ), .
:
1) , ;
2) , ;
3) , .
.
- .
.
, () . , ; , , - (). ( ), . , . , . , .
: ( , TDM Time Division Method ), , (FDM Frequency Division Method), .
, - , (, ), . (), LAN (Local Area Network ), , . (. 2.2) (bus), (ring), (star). .
- , . . , , . ( ). , , ( ), .
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( ), (WAN Wide Area Network). ( ), , , ( ) .
, CALS -, , , Internet. , , , .
. 2.3. , . , , , ( ) , , . , , , .
, , . - , , , , ( ) , , .
. , . . , , . , , . , , ( ) . , , .
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