6 COMPUTER NETWORKING HARDWARE: FUNCTIONS AND IMAGES PART 1
Literally, a computer network is a collection of two or more computers that are connected to each other. The interconnected computer is caused by the cable or non-connected cable so the computer can form a network. With this computer network, then each computer can exchange information, either from the server or between clients. Currently, the use of computer networks is of course very wide and also commonly used, especially with the development of internet features that we can easily access so this can lead to the need for a large computer network. To be more clear, you can try to see what kind of computer network.
To build a computer network, of course, there are many things to be considered, one of which is the hardware factor. Hardware or hardware is a very vital element in the formation of computer networks. If the lack of a single hardware element, then certainly a network will not be able to run with perfect. Here are some hardware or hardware that can be used on a computer network:
1. Computer Server
The first computer hardware that is an important device in a computer network is the server. Yes, the server is one very important device, because the server is the center of the computer network. All the important data that will be spread over the internet network are all located on the server computing. This server computer will be connected to the client computers, which can access data from the server.
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| Computer Server |
a. The main function of the server
The main function of the server is a database of information that will be sent and also disseminated by the network. All data will be transmitted through the network system so that later can get to the client computer. The sophistication of CPU function on the server computer is very important in supporting the reliability of the network in order not to happen computer often hangs.
b. Specific specifications of the server computer
With the task that must be able to provide data for clients connected to the network, the server computer must be able to operate in full, ie 24 hours a day. Therefore, usually, the server computer has a specification that does not exist in ordinary computers in general, such as better power supply, a hard drive that has a large capacity, a processor that is much faster and not easy to heat, large RAM capacity, as well as various special specifications others.
c. Needs and handling of server computers
In addition, there is a good server computer placed in a room with air conditioning system that remains running so this can reduce the increase in heat temperature on the server computer.
2. Computer user or client
Hardware in a second computer network is a client computer or user, often also known term terminal or workstation. In general, this client computer is a common computer used to obtain data from the server. Like the food chain in ecology, server computers are the crops of providers, while client computers are animals that eat the fruit of the plant. That is, the client computer is assigned to pull the data on the server computer.
a. The role of computer user or client
b. Specification of client computer or user
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| Computer user or client |
3. Hub
The main function of the hub is to divide the network from one server to the client computer in one network, especially local LAN network alias.Theoretically, the hub itself is a hardware or hardware that is a central connection point on a network, which serves to receive signals from the server or host and then transmits it to the client that will form a network.
With this central connection point, the hub can transmit data from server to more than one client connected to one LAN network. If you just want to simply divide a local network into several computers, then the hub is one of the right hardware.
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| Hub |
Hub functions
a. Creating a local network of multiple computers
b. Transmitting networks, especially LAN
c. Signal amplifier of a network
d. Affects the process of connectivity between networks
The downside of the hub
a. If the hub is damaged, then the entire computer network will fail
b. Can not set the speed or number of data packets transmitted to the client computer
4. Switch
Switches have the same functionality as hubs, which can help break down local networks. From one server or host computer, you can use switches to connect more than one client computer to a LAN or local network.
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| Switch |
Differences Hub With Switch
What distinguishes the function of a hub with a switch is its capability.Switches have a smarter capability than hubs because the switch is able to limit and also set the number of data packets transmitted to the client computer connected to the network. Thus, by using a switch, the arrangement of data between clients can be distinguished.
a. The main function of the switch
b. To receive signals as well as data from a computer or server
c. Transmits data from server or host to network and client
d. Reinforces signals transmitted from the server or host to the client
f. Can set and also limit the number of data packets transmitted to the client.
g. As central connection point
h. Can function as a repeater
i. As a splitter or separator between computers within a network.
5. Bridge
The bridge has the main function to bridge the network. The purpose of bridging the network is that bridges can merge more than one local network into a larger local network, or vice versa, breaking a large local / LAN network into smaller local networks. In addition, bridges can also be interfaces between two or more local networks with different network topologies.
Bridge function will be felt when you are in a large agency environment, which consists of several office rooms or divisions located far from the building. All intercomputer computers will be able to stay connected to a single main LAN network using a bridge.
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| Bridge |
Bridge Functions and Excellence
a. Break up large LAN networks, into small networks for a particular building or room
b. Save on operational costs, requires only one server for many buildings in a wide range
c. Can be used to break the LAN network to the outer islands
d. Maintain data security from an organization
f. Simplify the monitoring process on a smaller network
6. Router
The hardware in the next computer network is the router. The router itself technically has a function to do the tuning, or channel the internet connection through the TCP IP protocol to the client computer. Specifically, a router's function can be like an access point, which can forward an internet connection from a broadband or provider to a client computer location. However, basically, the router functions far more than that, because routers are used to provide specific routes or paths for transmitted data packets.
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| Router |
The use and implementation of the router
Examples of routers are usually in an office or campus, where the router will receive a data packet signal, and then the router will perform the process of routing the data packets to locations - locations that have been determined previously by the router operator.
Routers are perfect for use in one or more office buildings, campuses, or malls to transmit data packets to the access point. In this case, the router does have multiple roles that overlap with the access point in the computer network
Source: DosenIT