Unit 1 and 2 Revision

Unit 1 and 2 Revision

1. Networks

   • LAN
     • Connect devices over a small geographical area
     • Local Area Network
   • WPAN
     • Connect devices over your personal network
     • Wireless Personal Area Network
   • WAN
     • Connect devices over a large geographical area
     • Wide Area Network

2. Connection types

   • Bluetooth
     • wireless
   • Wifi
   • Ethernet
     • Cable
   • GPRS

3. Network threats and security

   • Firewall
   • Phishing
   • Encryption
   • Anti Malware
   • Passwords
     • At least 8 characters
     • Good use of Letters Numbers and Symbols
     • don't tell anyone

4. Computer Hardware

   • Secondary Storage
   • RAM
   • CPU
   • Virtual Memory