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.
Anti-aging Battery Technology is a technology offered on Samsung notebooks designed to let you discharge and recharge your laptop battery up to 1,500 times. Thatâs better than three times the longevity of a standard laptop battery, which typically wears out after 300 cycles and three years of daily use.