"Apple has lost a visionary and creative genius, and the world has  lost an amazing human being," Mr. Cook said in a letter to employees.  "We will honor his memory by dedicating ourselves to continuing the work  he loved so much."
During his more than three-decade career, Mr. Jobs transformed  Silicon Valley as he helped turn the once-sleepy expanse of fruit  orchards into the technology industry's innovation center. In addition  to laying the groundwork for the industry alongside others like Microsoft Corp. co-founder  Bill Gates,  Mr. Jobs proved the appeal of well-designed products over the power of  technology itself and transformed the way people interact with  technology. 
"The world rarely sees someone who has had the profound impact Steve  has had, the effects of which will be felt for many generations to  come," Mr. Gates said in a statement Wednesday.
The most productive chapter in Mr. Jobs's career occurred near the  end of his life, when a nearly unbroken string of successful products  like the iPod, iPhone and iPad changed the PC, electronics and  digital-media industries. The way he marketed and sold those products  through savvy advertising campaigns and Apple's retail stores helped  turn the company into a pop-culture phenomenon. 
At the beginning of that phase, Mr. Jobs described his philosophy as  trying to make products that were at "the intersection of art and  technology." In doing so, he turned Apple into the world's most valuable  company with a market value of $350 billion.


