Unit 1 and 2 Revision

Unit 1 and 2 Revision

1. NETWORKS

   • WPAN
     • A wireless personal area network is a computer network for interconnecting devices centered on an indevidual persons workspace
   • WAN
     • a wireless area network is networks connected over a large geographical area
   • LAN
     • A local area network is devices connevted over a small geograpical area

2. CONNECTION TYPES

   • GPRS
     • General Packet Radio Service is a packet oriented mobile data standard on the 2G and 3G cellular communication network's global system for mobile communications.
   • ETHERNET
     • Ethernet is a family of computer networking technologies commonly used in local area networks, metropolitan area networks and wide area networks.
   • WIFI
     • The term WiFi stands for Wireless Fidelity, but really it just means wireless internet

3. Computer Hardware

   • CPU
     • a central processing unit is the electronic circuitry within a computer that executes instructions that make up a computer program
   • RAM
     • Random access memory is a form of computer memory that can be read and changed in any order