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.
Submit. Â· just now. Report Abuse. it depends on the computer, how new the battery is, how good the battery is. most new batteries in new computers last about 5 hours. mine is 6 years old and the battery lasts about 30 min. Dibby Â· 8 years ago.