COMPUTER NETWORKS

COMPUTER NETWORKS

1. INRTERNET BASICS

   • Special Hardware and Software needed to connect
     • Using a PC
       • ADSL or DSL modem
     • Use your router
   • Speed (Mbps)
     • Modem-Router Speed
     • The telephone line
     • The volume of traffic

2. NETWORKS

   • LAN
     • Short local networks
       • At offices, homes.
   • WAN
     • Long range Networks
       • Wide Area, many computers connected.
   • WLAN
     • WIFI
     • AP
     • MC

3. IP PROTOCOL

   • Divide and win
   • CLIENT-SERVE INTERATION
     • Client machine
     • Serve machine
   • Saving money and telephone calls (VoIP)
   • Getaway

4. DNS

   • On-Line shopping uses Encryption Software
   • DNS and Data Security
   • DNS Poisoning
   • Get Protection from Hackers and Viruses
   • Password give Restricted Access to some Web Sites

5. TYPES OF INTERNET CONECTIONS

   • PCI MODEM
   • DSL
   • CABLE
   • OPTIC FIBER
   • WIRELESS INTERNET CONNECTION
   • SATELLITE
   • IP PHONE