What Is Computer Networking?

What Is Computer Networking?

November 30, 2019

Interested in a crash course in computer networking basics in St. Charles County, MO? Here are some basic terms you should be aware of, even if you have hired another person to handle your computer networking tasks on behalf of your company:

  • Computer network: The computer network is comprised of the various devices that connect together to send and receive data. Included in the network are devices that assist in the communication between other devices connected to the network. These network devices could include a router, bridge or hub.
  • Open vs. closed system: An open system is a system that has been connected to a network and is ready for communication, while a closed system is not connected to the network and therefore cannot be communicated with.
  • Port: A port is a channel through which data is sent or received on the network. Any host could have multiple different applications running, and each will have its own port number on which it’s running.
  • IP address: The internet protocol address is the system’s network address. Every device on the world wide web has an assigned IP address, given by the Internet Assigned Numbers Authority. You can see your IP address by opening the command prompt, typing “ipconfig” and pressing enter.
  • MAC address: The media access control (MAC) address is the unique identifier of each host, associated with the network interface card (NIC). A MAC address is assigned to the NIC when the physical machine is manufactured. You can check your MAC address in the command prompt by entering “ipconfig/all” and pressing enter.
  • Socket: The unique combination of port number and IP address is collectively termed the “socket.”
  • DNS server: a domain name system server is a server that translates URLs into their corresponding IP addresses. This means you don’t have to remember all the IP addresses for every website you want to visit. If you want, you can use the command “nslookup” to find the IP address of any domain you are looking for.
  • RARP: Reverse address resolution protocol (RARP) provides the IP address of a device when given a physical address as the input. RARP is, at this point, an obsolete feature.
  • OSI: OSI stands for Open Systems Interconnection, a type of reference model that indicates the specific standards for communications protocols.
  • Protocol: A protocol in networking terminology is a set of rules that defines how entities communicate with each other across the network. There are various different protocols that include TCP, IP, DHCP, FTP, ARP and more.

These are just a few examples of some of the basic networking terms that you might be interested in researching further if you want to have a greater understanding of how your business’s network functions and what your IT people have to deal with when managing your system. For more information about some of these computer networking basics in St. Charles County, MO, we encourage you to contact an IT consultant at Computer Paramedic today. We look forward to discussing your needs with you soon.

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