The Betamax was to VHS, as

The Betamax was to VHS, as

• DASD is to SAN
• Terminate and Stay Resident is to Internal OS Commands
• Switching is to Routing
• Token-Ring is to Ethernet 

EXPLANATION

One one time in the 1980s Ethernet and Token-Ring were very competitive, vying for the same customers and networks, replacing Arcnet (similar to Token-Ring) an older network topology.  Speed and reliability of Ethernet versus Token-Ring was the difference maker, and eventually Token-Ring is no longer used nor supported.

SOURCE

http://www.eweek.com/networking/30-years-ago-networking-in-the-1980s-meant-ethernet-vs.-token-ring