uefi.org~

#+title: BIOS and UEFI

BIOS and UEFI are the lowest-level parts of software on the computer,
the firmware that handles CPU features and operating system boot. Even
this is almost always inaccessible.

** Prime Directive

The prime directive is to communicate with users. The user will
generally know what they would like rather than what wouldn't help or
even hinder their experience. Some users may have different ideas of
what is "accessible" versus other users. In cases like this, you'll
either need to choose between the two ideas, or give the users a
choice between the two (preferable). When it comes to accessibility,
choice is never a bad thing. Your users will thank you for giving them
something that makes their own experience enjoyable, productive, or
both.

** Totally Blind Users

This section will concern users who have either only light perception
or cannot see anything at all. People who have limited vision will be
addressed in another section.

*** Input and Output

All input must be able to be performed on the keyboard. Output must be
optionally spoken if a pair of headphones are inserted, or using
another documented and easily found method. If a braille device is
connected, output must be sent to that device.

* Resources