Week 3: Computer Networking

Computer Networking: is a collection of computers and other hardware devices so that network users can share hardware, software, data and they can communicate with each other electronically.

Computer Network:

• Wired vs wireless
• Topology
• Architecture
• Size or coverage area

Types of Network:

• LAN: Local Area Network
• MAN: Metropolitan Area Network
• WAN: Wide Area Network

Network Component:

(i) Host/ End Nodes

• Data sources and data destination
• Personal computers, terminals, workstations, automatic teller machine

(ii) Transmission Media

• Sending electric or signal through specific media
• 2 types of transmission media:-

(iii) Network Electronic Devices

• Control data from sources to destination
• Provide interface between different media transmitter or for different protocol
• Connect multiple network together or connect computer or network to the internet
• Bridges, routers, multiplexers, switches, hubs, gateways, front and processors

(iv) Software/ Application

• The applications at the end nodes normally involves technique and protocols
• Protocols determines the rules and procedure to send data, terminate data, interpret data, present data and control mistakes
• Software-ensure data is delivered at respective destination

(v) Network Architecture Standards & Protocols

• NAS- The blueprint of standards that define how device in a network typically connect and communicate
• Ensure interoperability between various devices and equipment made by different vendors