local networks

local networks

1. WHAT IS A COMPUTER NETWORK

   • SET OF COMPTERS AND DEVICES CONNECTED TO EACH OTHER FOR THE PORPOUSE OF SHARING INFORMATION AND RESOURCES
     • TRANSMITER
     • RECEIVER
     • CHANEL
     • DECODING
     • ENCODING
     • PROTOCOL

2. THE SIZE OF THE NETWORK

   • LAN
     • IN THIS NETWORK THE COMPUTER ARE VERY CLOUSE TO EACH OTHER THEY ARE INTO THE SAME BUILDING
   • MAN
     • THAY ARE MADE OF COMPUTERS DISTRIBUTE THROUGTHOUT A CITY THEY ARE MADE OF SOME LAN
   • WAN
     • COMPUTER SPREAD THROUGTH OUT A COUNTRY, CONTINENT OR ALL THE WORLD

3. WHOSE NETWORKS ARE THEY

   • PUBLIC NETWORKS
     • NETWORK WHOSE ACCES IS PUBLIC AND GLOBAL THEY ALLOW THEIR USERS TO COMUNICATE AND SHARE INFORMATIN
   • PRIVATE NETWORKS
     • THE ARE NETWORK RESTRICTED TO THE OWNER OR USERS WHO USE THEM. WHEN THIS NETWORK ARE USE OR TIPICAL TOOLS OF THE PUBLIC INTERNET ARE CALLED INTRANETS
   • VIRTUAL PRIVATE NETWORKS
     • TIPE OF NETWORKS RESULTING FROM THE INTERCONNECTION OF SEVERAL PRIVATE NETWORKS WITH EACH OTHERS TAKING ADVANTAGE OF THE INFRAESTRUCTURE OF A GLOBAL NETWORK

4. PEER TO PEER NETWORKS AND CLIENT SERVER NETWORKS

   • CLIENT SEVER NETWORKS
     • COMPUTER IN CHARGE OF CENTRALIZING OR MANAGING A CERTAIN NECCESARY FUNCTION WITHIN A NETWORK. THE REST OF THE COMPUTER IN THE NETWORK ARE CALLED CLIENTS OR TERMINALS. SERVER ARE CONSIDERED DEDICATED
   • POINT TO POINT NETWORKS
     • ALL NODES OR WORKSTATION BEHAVE SIMULTANIOSLI AS CLIENTS AND SERVERS ARE VALID MODELS IN SMALL AND SIMPLE NETWORKS

5. THE TOPOLOGIES

   • BUS TOPOLOGY
   • RING TOPOLOGY
   • STAR TOPOLOGY

6. THE ETHERNET STANDARD

7. WIRED NETWORKS

   • TWISTEDOAIR CABLE
   • FIBRE OPTICS

8. WIRELESS NETWORKS

   • WIFY TECHNOLOGY
     • THE WIFY ROUTERS
     • THE ACCES POINTS
   • BLUETOOTH TECHNOLOGY
   • OTHER WIRELESS MEDIA

9. DEVICES ON A LAN NETWORK

   • THE NETWORK CARD
   • THE SWITCH
   • TEH ROUTER

10. THE TCP IP COMUNICATION PROTOCOL

    • TCP/IP
    • IP ADRESS
    • CLASES OF IP ADRESS
    • RUTING OR GATEWAY

11. TCP/IP SERVICES

    • THE DHCP SERVICES
    • FIXED PORT SERVICES HTTP, FTP,POP3 ETC

12. DOMAIN WORKGROUPS AND NETWORKS