Do you want to learn computer networking? Apart from basic things like you must know about Topology which is one of the core of the computer network itself, which by studying the topology you will find out how a computer is connected to other computers. There are a few other basic things you should know.
Actually, the basic things that we will tell are much more important to learn in a network other than topology. Why is that? Because without this basic thing, the network topology will not be formed, and computers will not be connected to each other. Here we will tell you what basic things you need to know.
Basic Things You Need to Know Before Learning to Network
1. Transmission Media
Transmission media is a device that is useful for connecting small-scale (LAN) and large-scale (WAN) computer networks, this transmission medium is very important because without transmission media it is impossible for a network to be created, current transmission media are wired and wireless. (wireless). The types of cables that we often use to build a network are UTP, STP, Coaxial and Fiber Optic cables, while the wireless devices we use are usually 2.4GHz wireless radios and 5GHz frequency complete with grid antennas.
2. Network Interface Card (NIC)
Network Interface Card (NIC) or commonly called a network card, is a physical interface that must be in place so that computers can connect to the network, in addition to PC / Laptop computers, other network devices such as HUBs, Switches and Routers also have NICs so they can be connected connected. There are several things that must be considered, namely the speed of the card interface and the type of port.
- The speed of each interface card is of course different, for interface cards that people commonly use on normal PC computers only have a speed of 100Mbps, there is also a type of interface card that has a speed of 1000Mbps.
- Port on the NIC of course it varies depending on the type of cable used, for PC / Laptop computers it is usually equipped with a NIC with an RJ45 connector port, an ADSL modem uses an RJ11 connector port some also use a BNC connector port for coaxial type cables, while routers usually use an RJ45 connector , however, some high end routers are usually equipped with an SPF port for the Fiber Optic connector.
3. Network Operating System (NOS)
Network Operating System is an operating system used to handle services on the network. Usually, in a network operating system there are services or services that are intended to serve requests from users such as DNS Server, FTP and others.
Functions of the Network Operating System:
- Connect each computer to the network so they can communicate with each other
- Handling services such as DNS Servers, Mail Servers
- Bandwidth management for users on the network
- Serves as filtering to limit and manage every traffic in the network
Included in the Network Operating System are Mikrotik RouterOS, Cisco IOS, Linux (commonly used for servers) variants of Windows NT Server family (Windows Server 2000 & amp; 2003), Windows Client (XP, Vista, Windows 7, 8, 10 ) Novels NetWare and others.
4. Types of Network Devices
Network devices are devices that are used in a network such as HUB, Switch and Router, the three devices work at different OSI layers so they have different capabilities, while other network devices such as Wireless Repeater, Access Point, Wireless Router and Modem, for the discussion of each network device we will discuss it in the next article for more details.
5. Network Protocol
The last is Network Protocol, which is a rule or rules that are used in a network to regulate data traffic and regulate how each network device communicates with each other. Commonly used network protocols are the Communication Protocol (communication protocol), Transport Protocol (transport protocol) and Application Protocol (application protocol).
Examples of Communication Protocol, Transport Protocol & amp; Application Protocol:
- IP (Internet Protocol) is an example for Communication Protocol
- TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are examples of transport protocols
- FTP (File Transfer Protocol), HTTP (Hypertext Transfer Protocol), HTTPS (Hypertext Transfer Protocol Secure) are examples of Applications protocol
So, those are the basic things you need to know to make it easier to learn computer network science in the future. May be useful