Compare external storage which need not have a permanent connection to a computer:

Later, permanent connections to both the hot and cold water supplies became the norm.

Being connectionless means that there is no concept of a stream or permanent connection between two hosts.

Children often form a more agreeable and permanent connection between married people than even love itself.

In 1878 was a permanent connection between Rotterdam and the South position.

Until 1936 there was no permanent connection for ordinary traffic to the other side of the Waal.

They can also be used to establish more permanent connections, for example, in the Cray 2 computer.

Many of the Universities have permanent connections between their computers.

"His permanent connection," she said, "raises him to a higher level."

Even permanent connections could be removed, if you knew their structure.