Hello everyone. I know that these exist, but I was wondering if OSX came with any built-in activity monitors (specifically the vitals, such as CPU usage, ram usage, etc, etc). But more specifically, one that can display and show everything on the very top menu bar of the display. I want something that is small and discrete, preferably with quantitative #'s and must be able to operate within that little menu bar at the top of the display. Are there any options built-in to OSX without having to download or initiate any external, 3rd party plugins? If not, are there any 3rd party plugins that do the same exact thing that I'm looking for (with it being internalized into the top menu bar)? Thanks!