The direction of a correlation is either positive or negative. In a negative correlation, the variables move in inverse, or opposite, directions. In other words, as one variable increases, the other variable decreases. For example, there is a negative correlation between self-esteem and depression. In other words, the higher your self-esteem, the lower your feelings of depression.
Excel Communications was founded in 1988 by Dallas entrepreneur Kenny Troutt as a long distance reseller in the US telecom sector at the birth of telecom deregulation.
Interview: Steve Wozniak, Co-Founder, Apple Computer If any one person can be said to have set off the personal computer revolution, it might be Steve Wozniak. He designed the machine that crystallized what a desktop computer was: the Apple II. Wozniak and Steve Jobs founded Apple Computer in 1976. Between Wozniak's technical ability and Jobs's mesmerizing energy, they were a powerful team. Woz first showed off his home-built computer, the Apple I, at Silicon Valley's Homebrew Computer Club in 1976.