Not to put too fine a point on it, a Unix machine.
The file systems of Unix machines all have the same general structure.
Very little scientific software was available to run on Unix machines until relatively recently.
Unix machines are made by companies called Next and Sun.
Customers realized that if someone else came out with a more powerful Unix machine, they could switch and still use their software.
A Unix machine automatically makes a call to a meter, and reads the information stored there.
On a Unix machine, you are always logged in under some name--possibly even your own!
Sales of servers, whether mainframes or smaller Unix machines, were a particular weak spot.
On the earliest Unix machines it took over a full second to compute a password hash.
But he came right back to our Unix machines, and right out onto the Milnet.