Industry insiders and celebrities have paid tribute to Apple chairman Steve Jobs, who has died aged 56.
Below is a selection of quotes paying tribute to Jobs.
Stephen Fry, author and comedian: "Woke to the news of Steve Jobs's death. He changed the world. I knew him a little and admired him entirely. Love to Apple and his family."
Dmitry Medvedev, Russian President: "People like Steve Jobs change our world. My sincere condolences to his loved ones and to everyone who admired his intellect and talent."
Chris Moyles, radio DJ: "Just woke to the sad news about Steve Jobs. A huge loss to technology. His products genuinely changed my life and I use them daily. R.I.P."
Salman Rushdie, writer: "I have been in love with the world Steve Jobs made ever since my first Apple Mac. He was one of the great architects of the real. RIP."
Steve Ballmer, Microsoft CEO: "I want to express my deepest condolences at the passing of Steve Jobs, one of the founders of our industry and a true visionary. My heart goes out to his family, everyone at Apple and everyone who has been touched by his work."
Carol Bartz, former Yahoo CEO: "He was a very special person, and he didn't get to where he was by having people like him all the time. He got to where he was because he had a vision and a purpose. It's easy to try and please everyone, but he kept to his principles."
Rupert Murdoch, chairman of News Corp: "Steve Jobs was simply the greatest CEO of his generation. While I am deeply saddened by his passing, I'm reminded of the stunning impact he had in revolutionising the way people consume media and entertainment. My heart goes out to his family and to everyone who had the opportunity to work beside him in bringing his many visions to life."
Mark Mulligan, digital music industry analyst: "Without him we'd probably all be walking around with mini-disc players and buying Super Audio CDs."
We'll be adding more quotes to this article throughout the day.