Years ago, organizations large computers called mainframes together in a wide area network. (link)

The linked computers everywhere across the country or across the world. (be)

Later, the forms of computer networking away from wide area networks. (shift)

Manufacturers now on producing personal computers with large servers and mainframes. (concentrate)

Today, personal computers easily with other computers through their Local Area Networks (LANs). (link)

In the future, private linkages possible with the continuous change that communications technologies undergo. (be)

That an entirely new thing our generations can look forward to. (be)