Open question: Base a computer company and sketching?

I would like to create my own computer company (as as compeditor the apple, horse power, Dell, the etc.). Which I would like to do, is, to be like the main designer. I would like to sketch hardware and to software, which we form. But I am not good with the Codeing and material. Which I would like to do, is, to sketch the user interface of the software. And I wanted to invent also ideas, if she comes to the technology, which enters into her. Is this a possible career? I thought that it would not be hard, for doing repeated things if it were really my company. What do you think?