Among scientists who have made outstanding contributions to the modern software industry, Tim Paterson, as a developer of the DOS system, did not gain a lot of wealth from his technical career while his peers became billionaires one after another. Bill Gates plans to formally exit the daily management of Microsoft next July and focus on charity work such as fighting AIDS and promoting education for impoverished children. However, Paterson is still striving for his own cause. According to foreign media reports, as Gates plans to disengage from Microsoft, Tim Paterson, the founder of computer codes and one of the main contributors to the Microsoft operating system, is still busy with his own business, running a small company in his hometown of Issaquah, Washington State that provides performance optimization components for old digital video recorders.