In 1979, MIT professor Christopher Schmandt and colleagues developed "Put That There," a voice and gesture interactive system, in the Architecture Machine Group (that later evolved into the famed MIT Media Lab). In this video, a researcher demonstrates the system while sitting comfortably in a stylish Eames Lounge Chair. From a 1982 paper about the project (PDF):
(Put That There) allows a user to build and modify a graphical database on a large format video dis- play. The goal of the research is a simple, conversational interface to sophisticated computer interaction. Natural language and gestures are used, while speech output allows the system to query the user on ambiguous input.
This project starts from the assumption that speech recognition hardware will never be 100% accurate, and explores other techniques to increase the use- fulness (i.e., the "effective accuracy") of such a system. These include: redundant input channels, syntactic and semantic analysis, and context- sensitive interpretation. In addition, we argue that recognition errors will be more tolerable if they are evident sooner through feedback and easily corrected by voice.
(Thanks, Dustin Hostetler!)