Computer network 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.
Type of Network
Many types of network depending on the geographical area.
1. Local Area Network (LAN) - Covers relatively small geographical area. Example: home, school and office.
2. Metropolitan Area Network (MAN) - Design to service a metropolitan area. Consist of multiple LAN. Example city.
3. Wide Area Network (WAN) - Covers large geographical area and consist of two or more LAN connected together using communication technology internet is the largest WAN.
4. Personal Area Network (PAN) - Network of personal devices. Example: printer, mobile devices, wired and wireless.
Network Component
1. Hots/ End Nodes
Refers to the data source and the data destination. Example: personals computers, terminals, workstations and automatic teller machine.
2. Transmission media(Cable)
For transmitting data and control signals. Responsible for sending electric or signal through spesific media. It can be bounded(wired) or unbounded (wireless) media.
3. Network Electronic Device
Responsible to control data from source to destination. To connect multiple network together or to connect computer or network to the internet. Example: bridges, routers, multiplexers, switches, hubs, gateways and front end processors.
4. Application/Software
The protocol determines the rules and procedure to send data, terminate data, interpret data, present data and control mistakes. Software in the network function to ensure data is delivered at respective destination. To control data transmission.
5. Network Architecture Standard & Protocol.
To ensyre interoperability between various devices and equipment made by different vendors. Also, to enable devices made by different companies to work or communicate with each other. Example : TCP/IP, Ethernet (802.3), Wi-Fi (802.11), and WiMAX.
Networking Architecture
Network architecture is the way they are design to communicate.
2 types of network architecture
1. Client/server networks
Client = computers that request or utilize network resources.
Server = processing the request by client.
Retrieves file from server : download, transfer from client to server : upload
2. Peer to peer network
No central server. Have direct access to other devices attached to the network. Example itunes, bluetooth between handphone.
Network Topology
Study of the arrangement or mapping of the element (links, nodes) of a network, especially the physical (real) and logical (virtual) interconnections between nodes.
Physical network topology
1. Linear bus
2. Ring
3. Star
4. Tree / Hybrid
5. Mesh
2. Logical Network Topology
2 types of logical network is shared media topology and token-based topology.
Before the class ended, we've been asked to make a slides using google slide about network topology. Our class has been divided by 5 groups. For example, linear bus topology, ring topology, star topology, tree topology and mesh topology. I and my friends have to make slide about ring topology using google slide. Google slide very simple because can make assessment together with friend through online with different place.
https://docs.google.com/presentation/d/1cCRtsGGo0SZfNXQEOy-GJfZKvWdX2PPAdDZr0zrrtiU/edit?usp=sharing
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