Next to REM sleep, which you’ve probably heard of, and “deep” sleep, which feels self explanatory, there’s “core” sleep. And if you Google what core sleep means, you’ll get a ...

Processors with similar names could be anything from brand new to 15-plus years old. For example, Core i5 processors from 2008 have the same brand name as Core i5 processors from 2023. This won’t be a ...