Computer network Component introduction

Computer network Component introduction

• 1.
  INTERDUCTION TO NETWORKING BY:-ASHUTOSH KUMAR
• 2.
  INTRODUCTION :-Computer network isa group of two more computers linked together. :-connected by various mediums like cables, wireless adapters etc. :-share common resources
• 3.
  TYPES OF NETWORK :-withina limited area such as homes, schools, colleges etc. :-combinations of a LANs. :-best example is INTERNET
• 4.
  NETWORK COMPONENTS & TERMINOLOGY :-componentin the computer networks NODE :-Computer, router, printer, switch :-Having unique address :-Capable of sending , receiving, forwarding, consuming data
• 5.
  NIC (NETWORK INTERFACECONTROLLER) :-Hardware device of each node to connect to the network :-provide wireless or wired network
• 6.
  MAC (MEDIA ACCESSCONTROL) ADDRESS :-NIC have MAC address :-6 bytes long :-3 bytes identifies manufacturer :-3 bytes , serial number for NIC
• 7.
  SERVER & CLIENT Delivers servicesto other node Consumes the services provided by the server
• 8.
  MEDIA CONVERTER :-Connect twodissimilar cable type :-Ex-connecting twisted pair cable to fibre optics cable REPEATER :-having two ports :-Signal amplifier
• 9.
  CHASIS HUB STACKABLE HUB SWITCHES
• 10.
  ROUTER :-multi-port device :-routing andforwarding :-placed at gateway(where two networks connect) FIREWALL :-work under specific filter rule :-checks source and destination address type of protocol used
• 11.
  CSU/DSU :-Channel service unit :-interfacebetween LAN &WAN :-relies on other devices for handshaking & error detection CSU DSU :-data service unit :-provides error detection and handshaking :-maintain connection across WAN