DEC.com is the fifth oldest domain name. It was registered by Digital Equipment Corporation, which was also the first computer vendor to launch a public web site (on 1th October 1993).
At one time it hosted a software repository at gatekeeper.dec.com which was very popular during the pre-WWW days.
The El Capitan OS X version is named after the El Capitan rock formation at the Yosemite National Park. Wallpapers that came with the operating system featured this vertical rock. [more...]