Computer Networking In Uganda
A computer network is a connection between two or more network devices, like computers, routers, and switches, to share network resources. The establishment of a computer network depends on the requirements of the communication channel, i.e., the network can be wired or wireless.
Next, let’s look into the types of networks available.
Types of Networks
According to the communication requirements, multiple types of network connections are available. The most basic type of network classification depends on the network’s geographical Below mentioned are different types of networks:
- PAN (Personal Area Network)
- LAN (Local Area Network)
- MAN (Metropolitan Area Network)
- WAN (Wide Area Network)
Let’s look into each of the network types in detail.
What Is Local Area Network (LAN)?
The Local Area Network (LAN) is designed to connect multiple network devices and systems within a limited geographical distance. The devices are connected using multiple protocols for properly and efficiently exchanging data and services.
Attributes of LAN Network:
The data transmit speed in the LAN network is relatively higher than the other network types, MAN and WAN.
- LAN uses private network addresses for network connectivity for data and service exchange, and it uses cable for network connection, decreasing error and maintaining data security.
Advantages and Disadvantages of LAN Network
|
Advantages |
Disadvantages |
|
Transmission of data and services is relatively higher than other network connections. |
Need constant administration of experienced engineers for functioning. |
|
The Network Server acts as a central unit for the whole network. |
Probability of leak of sensitive data by LAN administration. |
What Is Metropolitan Area Network (MAN)?
The Metropolitan Area Network (MAN) is a network type that covers the network connection of an entire city or connection of a small area. The area covered by the network is connected using a wired network, like data cables.
Attributes of MAN Network:
- Network covers an entire town area or a portion of a city.
- Data transmission speed is relatively high due to the installation of optical cables and wired connections.
Advantages and Disadvantages of MAN Network:
|
Advantages |
Disadvantages |
|
Provides Full-Duplex data transmission in the network channel for devices. |
High probability of attack from hackers and cybercriminals due to large networks. |
|
The network connection area covers an entire city or some parts using the optic cables. |
The need for good quality hardware and the installation cost is very high. |
hat Is Wide Area Network (WAN)
The Wide Area Network (WAN) is designed to connect devices over large distances like states or between countries. The connection is wireless in most cases and uses radio towers for communication.
The WAN network can be made up of multiple LAN and MAN networks.
Attributes of WAN Network:
- The speed of the WAN data transfer is lower than in comparison to LAN and MAN networks due to the large distance covered.
- The WAN network uses a satellite medium to transmit data between multiple locations and network towers.
Advantages and Disadvantages of WAN Network:
| Advantages | Disadvantages |
| This network covers a high geographical area and is used for large-distance connections. | High cost to set up the network and the Support of experienced technicians is needed to maintain the network. |
| They also use radio towers and connect channels for users. | It is difficult to prevent hacking and debug a large network. |
Difference Between LAN, MAN, and WAN
| Basis | LAN | MAN | WAN |
| Meaning | LAN is a network that enables the communication between many linked devices. It is in charge of establishing connections among neighbourhood units, including universities and schools. | Several computers can be connected to MAN in the same city or separately. It encompasses a greater region, including minor towns and cities. | The WAN network extends to a much greater area. It can link multiple countries together. |
| Network Authority | LAN is a private and secured network. Hospitals, schools, offices, etc., can own it. | MAN can be either public or private. A lot of businesses and telephone companies could own them. | A single company may not own WAN. It can be private or public. |
| Speed | The Internet speed provided through LAN is fast. | MAN provides a modest Internet connection speed. | WAN provides a slow Internet connection. |
| Maintenance | LAN maintenance is very easy. | MAN’s maintenance is easier compared to LAN. | WAN maintenance is very difficult. |
| Congestion | Congestion is less in the LAN network. | It is more in MAN. | Congestion is more in WAN when compared to LAN and MAN. |
| Bandwidth | The bandwidth in LAN is very high. | In MAN, bandwidth is less. | WAN bandwidth is quite limited. |
| Designing | It is very easy to design a LAN network. | It isn’t easy to design a MAN network. | It is complicated to design WAN. |
How to Set Up The Networks?
LAN(LOCAL AREA NETWORK)
Ethernet is the foundation of all existing LANs, whether wired or wireless. Computers and servers can connect via cables or wirelessly. WiFi Access Points provide wireless connectivity in combination with a wired network. WAP-enabled devices serve as a link between PCs and networks. A WAP may connect a hundred or even a thousand wireless individuals to a network. Servers on a LAN are generally connected by wire.
MAN
A metropolitan area network combines many LANs with a fiber optic as the basis. It offers services akin to those offered by an internet service provider for broad area networks. MANs can use microwave or infrared lasers to connect Local Area Networks wirelessly. MANs are often owned by just one significant organization and are mainly created for towns or cities to give a high data connection.
WAN
Users and computers in one area may interact with users and computers in other locations via a WAN, composed of two or more interconnected Local Area Networks or Metropolitan Area Networks. Computers in a Wide Area Network are linked by public networks such as phone lines, satellite connections, or leased lines. To extend the network’s capabilities across locations, costly leased lines are usually used to build WANs. At each end of a leased line, a router is attached.
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