Introduced in 2015, El Capitan includes faster performance and a raft of enhancements, plus new features in Notes, Mail, Safari, Maps and Mission Control. On startup, the cursor starts out large ...

Called "El Capitan," the machine was unveiled earlier this month after around eight years of research and development. It will be used to secure the US nuclear stockpile and for classified research.

Climbers Tommy Caldwell and Kevin Jorgeson became the first in the world to use only their hands and feet to scale a sheer granite face called 'El Capitan' in California's Yosemite National.