Wednesday, February 17, 2010

NIC( NETWORK INTERFACE CARD

NIC( NETWORK INTERFACE CARD)

TYPES of NIC :


  1. BNC (BRITISH NAVEL CONNECTOR)LAN CARD
  2. usb NIC
  3. PCMCIA
  4. WLAN CARD



WORK:CONVERT DATA TO ELECTRIC PULSES AND VICE VERSA

NIC IS USED TO CONNECT A DEVICE(PC) TO A NETWORK.

NIC HAVE A UNIQUE ADDRESS CALLLED MAC ADDRESS (MEDIA ACCESS CONTROL )
ALSO CALLED PHYSICAL ADDRESS
MAC ADDRESS = 48 BIT
FIRST 24 BIT= REPRESENTS VENDOR ID REST 24 BITS = REPRESENT SEQENCE ID IT IS HEXADECIMAL ADDRESS

HOW TO SEE MAC ADDRESS ON A PC

RUN->CMD->IPCONFIG/ALL OR GETMAC
mac address is unique all over the world

RJ45 LAN CARD
BNC+RJ45 LAN CARD

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