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Friday, November 18, 2016

Data Communication Slide Chapter-01

What is Data Communications?

Data Communications can mean many things to different people, but when we are dealing with computers and our interactions with them, we are typically discussing equipment that was designed to provide or gather information needs to communicate beyond itself, to similar equipment or to a dissimilar system, Data Communications provides the tools, products and equipment to make this happen.


A simple scenario would be two personal computers in the same building, but 50 feet away from each other. By hooking up a cable between the two personal computers, we now have Data Communications. The extent of Data Communications builds from this point on, since there are many factors such as distance, topology, protocol, signaling, security, etc.. that determine how Data Communications will take place.

Some of our more common Data Communications would be the simple act of your Personal Computer connecting to the Internet with a DSL modem. You have now established a Communications between your PC and lets say a website. Every time you click on a hyperlink, you are requesting information and it is presented to you in some for of Data which may letters, graphics, or colors. Other forms come in ways you may not see. If you are speeding on a some major highway, they have sensors and cameras that can tell how fast you are traveling. This system proceeds to capture a picture of your car, license tag and information on the event. This Data automatically Communicates to a central motor vehicle computer where it checks the data base against your license tag number, when found, it will send out your ticket in the mail.

Other forms of Data Communications have changed the way work and live dramatically by delivering immediate news and information right into our homes, allow us to get money from an ATM without standing on a bank line, shop, learn and buy any product or service without leaving our home.

Data Communications will continue to evolve and change dramatically for the for seeable future.The challenge for most businesses and corporations today are the seemingly endless choices to achieve their Data Communications needs. Equipment, standards and technology change weekly. In house experts and employees are typically to busy maintaining what they have. The logical choice is to work with companies that specialize in Data Communications as their core business, these companies see first hand all the new solutions and equipment on a daily basis. These companies unlike manufacturers are not biased toward solutions and therefore bring you the correct solution to your applications. One such company with this expertise is Pulse, the very website you are on now. If you are just learning, read all our learning documents, if you are looking for a company we just described, then give us a call now ! 

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