Resumen
Over the past three decades, regular, predictable improvements in computers have been the norm, progress attributable to Moore's Law, the steady 40%-per-year increase in the number of transistors per chip unit area. Faster processors enabled software vendors to add new features. Software changed and improved as computers became more capable. To most of the world, the real dividend of Moore's Law was this improvement. Moore's Dividend was spent in many ways and places, ranging from programming languages, models, architectures, and development practices, up through software functionality. Parallelism is not a surrogate for faster processors and cannot directly step into their roles. Multicore processors will change software as profoundly as previous hardware revolutions radically altered the size and cost of computers, the software written for them, and the industry that produced and sold the hardware and software. Parallelism will drive software in new directions rather than continuing the evolutionary improvements made familiar by Moore's Dividend.