29. Put-That-There, Bolt, 1980

• Focuses on multimedia computer interfaces which combine both speech and gesture
• Put-That-There also threw in the idea of more spoken conversational techniques
• Bolt used 2-dimensional screens to offer a new view into a 3-dimensional space
• He did not focus solely on one area of communication 
• His ideas challenged previously held notions of computer-human interaction "in which these two types of space are experienced by the user as one"
• These interfaces let a personal communicate/interact with a computer by using "speech, gesture, gaze...and facial expression"