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.
In 1837 Charles Babbage invented a 'computer' using punched cards for his programs -. In 1936 Alan Turning (regarded as the father of the 'modern computing science') used a keyboard system - Anyone who uses a keyboard/spread sheet or word processing is said to be working on a Turner machine -.