There were four basic materials that the Egyptians used to build the pyramids: limestone, pink granite, basalt, and alabaster. Each type of material had a diverse use. Limestone had, for the most part, two uses.
To answer your question: The useful lifespan of a CPU is about 3-4 years. My guess on the technical lifespan under full load is closer to 8-10 years if nothing else breaks and takes the CPU with it. The reasons: High Performance Computing Clusters usually keep the computers for 3-4 years.
The Average Lifespan for Laptops. Your laptop should last between three and five years. Creatas Images/Creatas/Getty Images. Your laptop's compact, all-in-one design enables you to take it with you just about anywhere and still be able to work and play.s a machine, however, it won't last forever and you'll eventually need to replace it. Although each individual laptop's actual lifespan varies, on average a laptop will typically give you between three and five years of use.