Exclusive Network Model to Prevent People Penetrate Networking Devices

Once upon a time, there is no network or computer. After that, the first computer made, but because no one else who can be invited Speaking,... thumbnail 1 summary

1/26/2016

Once upon a time, there is no network or computer. After that, the first computer made, but because no one else who can be invited Speaking, not necessary a network! Finally, the second computer is made, and the need for networking has been started.

Network began to be developed as part of any offer computer vendor in the late 1960s, and eventually popular in the late 1970s. Each vendor computer networking to create a model of its own, which helps the computer so that a vendor can communicate easily.

Arrival networking, the two largest computer vendor in the world is the International Business Machines (IBM) and Digital Equipment Corporation (DEC). Then, IBM make its own model of networking, called Systems Network Architecture (SNA), and DEC to make his own, cleverly called DECnet.

Models Exclusive Networking vendors and others that are similar to the model is very good, the model enables the creation and implementation of the network, and can be operated, but not perfect. Problems on the exclusive networking models is have the quality exclusive model. So, the IBM computer can not communicate with computers DEC. Imagine if the same thing happens on the phone, you will not be able to call your best friend if he's using a different phone vendors.

As you can see, if a company wants to have some IBM computers and some computers DEC, then the company must have a separate network. Although thought it might be silly for now, imagine if you can only afford to buy a Dell PC as Gateway PC can not speak to Dell. That's the problem facing Exclusive networking models.

Two solutions emerged, short-term and long-term. Short-term solution, in association with kindness, just a form of capitalism long: DEC adjust its computers with models of the IBM SNA. Why? At that time, IBM gross income is approximately 10 times larger. So, DEC makes software that convert between standard DECnet and SNA standards. Software was not good, but it can be operated.

DEC create an gateway "DEC to SNA", which enables the devices of DEC and IBM SNA to communicate. The term gateway refers to a wide variety of networking devices that typically change one standard to another standard. As you can see, computer DEC easily act like an IBM computer, which uses SNA networking models. DEC just write some software, it operates on a device called a gateway, which converts into a DECnet SNA and vice versa.