At first, Jobs went to a Microsoft party. At the party, Microsoft engineers kept chattering with Jobs, "Imagine if a touch-screen phone could be manipulated freely with your fingers. We will design such a computer soon. " This angered Jobs, who has been very angry since he came home. He has always wanted something great in his heart, so we have to design it for them. So Jobs called designers and R&D team to study this topic, and finally designed the prototype of ipad. Jobs was afraid of a bad future, so he applied this technology to his mobile phone. His idea at that time was. "It would be great if the mobile phone no longer has a physical keyboard, but can appear on the screen anytime and anywhere." So the iphone was produced, and the response of the iphone was very good, so he slightly transformed the prototype of the ipad into an ipad, which means that the ipad was earlier than the iphone. This is the only time, I hope it can help you.