1. NIC (Network Interface Card) – An expansion card or other device use to provide 
     network access to a computer or other device, such 
     as a printer. Also called network adapter or network
     card.
2. HUB – A HUB is used to connects computers on an Ethernet network.
3. 
   SWITCH – A device of capable forwarding packets directly to the port associated 
     with particular network address.
4. BRIDGE – A device that connects network using the same communication protocols
     so that information can be passed from one to the other.
   
   
5. ROUTER – An intermediary device on a communication network that expedites me –
     ssages delivery. On a single network linking many computers through a
     mesh possible connections, a router receives a transmitted messages 
     and forwards them to their correct destination over the most efficient 
     available route. On an interconnected set of LANs including those based
     different function of acting as a link between LANs, enabling messages
     to be sent from one to another.
6. CABLE MODEM – A modem that sends and receives data through coaxial cable tel –
     elevision network instead of telephone lines, which have speeds 
     of 500 kbps, can generally transmit data faster than current conv –
     entional modems. However cable modems do not operate at the 
     rate upstream (when sending information) and downstream
     (when receiving information). Upstream rates from about 10 mbps
     to 36 Mbps.
7. DIAL UP MODEM – It convert the digital signal to analog signal.
8. NETWORK CABLING – Is the medium through which information usually moves 
     from one network device to another.
9. GATEWAYS – A device that connects network using different communication proto –
     cols so the information can be passed from one to another. A gateway
     both transfer information and converts it to a form compatible with
     the protocols used by the receiving network. 

TYPES OF CABLE

1. 
   UTP (Unshielded Twisted Pair) – example: CAT 5 Data to 100 Mbps.
   
2. STP (Shielded Twisted Pair) – Less bandwidth
3. COAXIAL CABLE – example: 10 Base 2
4. FIBER OPTIC CABLE – example: 10 Base F

TYPES OF CONNECTOR

1. RJ 45 CONNECTOR – for UTP and STP
2. BNC (Bayone Neill Concelman) – for Coaxial cable
3. ST/SC CONNECTOR – for Fiber Optic Cable

TOOLS

1. CRIMPER.