It is essential to learn the basics in networking. The basic principles of a network systems are:
- A network is formed when two or more computers are connected wire or wirelessly, for sharing information and communication purposes.
- Network systems are essential to effective functioning of computerized HIS.
- It takes advantage of the principle of TCP/IP used in the internet for fast and accurate transmission of date across systems of diverse platforms.
- Network systems made it possible to have vast information originally generated and stored in separate department to be available online allowing the data to be viewed and shared by others.
- The information may be collected into a server like a mainframe or minicomputer. The collected data are constantly updated online by the different departments and retrieved by anybody anytime.
Network Topology
- Bus topology- a setup where each computers and network devices are connected to a single cable or backbone. It needs a terminator to prevent signal bouncing back and forth on the bus cable. If the network cable breaks, the entire network goes down.
- Star topology- a very common network setup where each of the devices and computers on a network connect to a central hub. It is the easiest setup. if the central hub fails, all computers that are connected to the hub would be disconnected.
- Tree topology- a very common network setup that is similar to a bus topology and a star topology. It connects multiple star networks to other star networks. If the main cable or trunk between each of the star topology network failed, those networks would be unable to communicate with each other. However, computers on the same star topology would still be able to communicate with each other.
- Mesh topology- a network setup where each of the computers and network devices are interconnected with one another in all possible or partial combinations, allowing most transmissions to be distributed, even if one of the connections go down. This type of topology is commonly used for wireless networks.
- Ring topology- configuration where network computer and device are connected to each other forming a large circle. Each packet is sent around the ring until it reaches its final destination. Today, the ring topology is seldom used.
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