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.
Charles Babbage was the first person to introduce the idea of programmable machines. Charles Babbage hardly imagined that his distaste for human errors would one day result in inventions such as desktop computers and laptop computers. The Atanasoff-Berry Computer (ABC) designed in 1937 was the name of the first computer. REF:http://www.buzzle.com/articles/who-invented-the-computer.html abhigna.p.v.