New York: Apple chief Steve Jobs on Thursday said he is resigning as CEO of the technology giant he co-founded and named Tim Cook as his successor.

According to his letter "to the Apple Board of Directors and the Apple Community", posted on the Wall Street Journal website, Jobs said, "I hereby resign as CEO of Apple. I would like to serve, if the Board sees fit, as Chairman of the Board, director and Apple employee."

"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."

He said he "strongly recommends" that Apple executes its succession plan and names Tim Cook as CEO of Apple.

"I believe Apple's brightest and most innovative days are ahead of it. And I look forward to watching and contributing to its success in a new role. I have made some of the best friends of my life at Apple, and I thank you all for the many years of being able to work alongside you."

A pancreatic cancer survivor, Jobs has been on medical leave for an undisclosed condition since January 17.