At least 100 of the genes are a complete mystery to science - we have no idea what function they support.

BBC: Is life just genes?

The Tactile Pro 4 closely matches the layout of a standard Mac keyboard - complete with an Fn key and special function keys that work just like those on an actual Apple keyboard.

ENGADGET: Matias updates the Tactile Pro to version 4, announces Mini Tactile Pro keyboard, we go hands-on (video)

He said the function room, on the the level below the main restaurant was also undergoing a complete refurbishment and would be available for hire.

BBC: Swansea's tower restaurant reopening