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Computer Networks (Types of Networks (Tree (Is very flexible, If central…
Computer Networks
Types of Networks
Tree
Is very flexible
If central hub breaks so will the whole system
LAN
Star
If one device fails the whole system will not be affected
If the central hub breaks down the whole systems crashes
WAN
Bus
Easy to add new computers
Difficult to locate any fault on the network
WLAN
If signal is affected it will slow down
All computers access the same services and resources
Ring
If there is a falty wiring between two computers the whole system will fail
Works well under heavy loading
Network Devices
Switches
Hubs
Routers
Bridges
Modems
Communications
Email
Video conferencing
Fax
Voice over Internet Protocol (VOIP)
Network security
Passwords
Encryption
User IDs
Authentic Techniques
Intranet
Private servers
Buisnesses
The Internet
Web Browsers
Internet service providers (ISPs)