, Adobe co-founders and co-chairmen of the board:

"We met Steve Jobs about 3 months after we started Adobe. He called us and said: 'I hear you guys are doing great things -- can we meet?' He came over to our tiny office in Mountain View and saw the early stages of PostScript. He got the concept immediately and we started about 5 months of negotiations over our first contract. Apple invested $2.5 million into Adobe and gave us an advance on royalties. This allowed us to help Apple build the first LaserWriter. Without Steve's vision and incredible willingness to take risk, Adobe would not be what it is today. We owe an enormous debt to Steve and his vision."

U.S. President :

"Michelle and I are saddened to learn of the passing of Steve Jobs. Steve was among the greatest of American innovators - brave enough to think differently, bold enough to believe he could change the world, and talented enough to do it."

, Virgin Group chairman: