Communication
Computer communications describes a process in which two or more computers or devices transfer data, instructions, and information.
Uses Computer communication
- Text messaging (sms)
- picture messaging
- video messaging
- Gps
- groupware
- voicemail
Networks
A network is a collection of computers and devices connected together via communications devices and transmission media
Advantages of a Network
- Facilitating communication
- sharing hardware
- sharing data and information
- sharing software
- transferring funds
Types of networks
- Local Area Network (LAN)
- Wireless LAN (WLAN)
- Metropolitan Area Network (MAN)
- Wide Area Network(WAN)
- P2P
Network Topology
Network topology is the arrangement of the various elements (links, nodes, etc.) of a computer network. Essentially, it is the topological structure of a networkand may be depicted physically or logically.
Networks
- Ethernet
- Token ring
- TCP/IP
- Wifi
- Bluetooth
- UWB
- IrDA
- RFID
- WiMAX
- WAP
Types of wired home networks
- Ethernet
- Powereline Cable
- Phoneline
Types of Physical Transmission Media
- Coaxial cable
- Twisted pair
- Fibre optics
Types of Wireless Transmission Media
- Infrared
- Broadcast Radio
- Cellular Radio
- Microwave Radio
- Communication Satelite
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