Why has the ring topology become obsolete?

Answer 1

These days each desktop computer has a separate internet address bypassing the need to have everything sent through a ring of computers or token ring system. The internet is based on a form of interlinked computers that means information sent from one computer find its way through whatever links it needs to another computer regardless of where those computers are.

Answer 2

There may be various reasons that the ring topology becomes obsolete. One of the reason may be the security . As the information is passed in a ring manner to reach the destination.