Originally Posted by Etoile

CART is Computer Assisted Real-time Transcription. It is basically very similar to captions on your TV, except it is done on laptops. The captioner has one laptop and transcribes everything that is said, and the audience member has the other laptop and reads what the captioner has written. Like with captions on TV, this is usually done by someone who is trained with court reporting, using phonetics and syllables rather than typing out every word completely.

All interpreters, whether qualified or not, use sign language. CART specialists are usually called a CART specialist, CART provider, or captioner.

It is also possible to have CART shown on a large screen or even over the internet. The captioner does not have to be in the room, if the speakers are wearing microphones the captioner can listen over headset.

I believe that is all correct...if I am wrong about any of it I hope somebody will correct me!