As professionals, managers, and technicians become more intense computer users, they often find that the more powerful operating systems and software programs they gravitate to begin taxing their existing system. This easy-to-read, extensively illustrated volume shows non-technical beginners as well as seasoned professionals how to upgrade and improve the performance of their own PCs. Shows how to easily and quickly identify and solve computer performance problems at the data input, output, and processing levels through cost-effective hardware changes and software techniques that enhance hardware performance.