Apple approached Sony in late 1989 because it did not have enough engineers to handle the number of new products that were planned for delivery in 1991. Using a basic blueprint from Apple, including a list of chips and other components, and the Portable's architecture, the 100 was miniaturized and manufactured by Sony in San Diego, California, and Japan. Sony engineers had little experience building personal computers but nonetheless completed Apple's smallest and lightest machine in under 13 months, cancelling other projects and giving the PowerBook 100 top priority. Sony president Norio Ohga gave project manager Kihey Yamamoto permission to recruit engineers from any Sony division.