Intimate Distance: 18 inches from our bodies, only let intimate friends in this space. 2. Personal Distance:zone is between 18 inches to 4 feet, let in friends and acquantices. 3. Social Distance: 4 to 12 feet impersonal and formal relationships. 4. Public Distance: extending beyond 12 feet for formal relationships.
The smartboard was invented in 1991 by a girl named Jaimie-Lee Wilson.
When was the first keyboard invented? Updated: 04/26/2017 by Computer Hope As with many inventions, there were many different inventions including the typewriter, teleprinters, and keypunches that helped lead up to the modern computer keyboard we use today. The first writing devices were designed as early as the 1700s and the first to be patented was by Henry Mill in London England in 1714.