Technology giant Apple rocked Wall Street Wednesday by announcing that its founder-CEO Steve Jobs has resigned from the top post, ending a colorful career that spanned over 14 years.

Jobs suffered for long from a rare pancreatic cancer and was on medical leave for an undisclosed condition since Jan. 17, 2011. His gaunt appearance has been subject of a raging debate as investors often questioned his health and ability to continue at Apple.

Finally, the announcement came on Wednesday evening. I have always said if there ever came a day when I could no longer meet my duties and expectations as Apple's CEO, I would be the first to let you know. Unfortunately, that day has come, Jobs said in a brief letter to Apple employees.

However, Apple has not been left an orphan. Apple COO Tim Cook has succeeded Jobs as chief executive, while Jobs will continue as Apple's Chairman of the Board.

Nonetheless, Apple shares dived as much as seven percent in after-hours trading following the announcement, because the market knew Cook had big shoes to fill -- Jobs has been a driver of innovation and is clearly the main reason behind Apple's success.

Start the slideshow to find out the top 10 biggest achievements of Apple during Jobs' reign.