The OSI model explained in simple terms

OSI Model Illustrated graphicLearning technology isn't sexy, but I am doing my best to keep it interesting. Here I take on the complex subject of the Computer Networking OSI model explained in simple terms. In our previous article, Understanding the mystical OSI Model explained in simple terms we used an analogy to illustrate the OSI model.

Why is the OSI Reference Model important?

Simply put the OSI Reference Model is a THEORETICAL model describing a standard of computer networking. The TCP/IP Reference model is based on the ACTUAL standards of the internet which are defined in the collection of Request for Comments (RFC) documents started by Steve Crocker in 1969 to help record unofficial notes on the development of ARPANET. RFCs have since become official documents of Internet specifications.

The OSI model is important because many certification tests use it to determine your understanding of computer networking concepts. The OSI Reference Model is an attempt to create a set of computer networking standards by the International Standards Organization. A "Reference Model" is a set of text book definitions. You often learn something new by first learning text book definitions. The common protocol suite of computer networking is TCP/IP. The geeks who created TCP/IP were not as anal in creating a pretty "reference model." TCP/IP evolved over many years as it went from a theory to the concept of the internet.

Understanding the mystical OSI Model explained in simple terms

 Understanding computer network technologyAs you begin your quest to learn computer networking one of the first tasks you have before you is a basic understanding of the OSI model.

For many folks understanding the OSI model is like trying to understand some mystical formula that controls the way computer networks operate.

As we help you to begin your journey to understanding computer networking We will tackle explaining the complex subject of the computer networking OSI model simple terms in hopes that you will gain an understanding of the reasons behind the definitions

You can find a lot of resources that define the components of the OSI model, but an understanding of the reasons behind the definitions will go a lot way to fully understanding this complex technology model.

The acronym and the organization behind it can get confusing. The formal name for the OSI model is the Open Systems Interconnection model. Open Systems refers to a cooperative effort to have development of hardware and software among many vendors that could be used together. The model is a product of the International Organization for Standardization (2) which is often abbreviated ISO.

Basic computer networking explained in simple terms

A basic understanding of the concepts of computer networkingWhether you are a business manager learning the language of technology to better communicate with IT staff, or just beginning your IT career, don't overlook a basic understanding of computer networking.

What is computer networking?

The simplest definition of a computer network is a group of computers that are able to communicate with one another and share a resource. A computer network is a collection of hardware and software that enables a group of devices to communicate and provides users with access to shared resources such as data, files, programs, and operations.

In simplest terms, a computer network is created to share. In teaching computer networking I often commented that if you find someone who didn't like to use the computer network, they probably had a personal issue with the concept of sharing.

We live in a world of data and information. We love to share data and information. All that data and information gets from my house to your house thanks to the concepts of computer networking. We need computer networking to build the vehicles that transport data and information.


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