RAM: 2143MiB / 3798MiB

What does this means ? I cannot even know about my laptop's RAM

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    Where did you see this? Why is this tagged graphics? – muru Dec 12 '17 at 7:57

On the command line you can use:


to check your (free/available) RAM. Also do:

man free
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  • you can also run free -g and it will show you in GiB or free -m will be MiB... you will look at total used and available just a note tho that it may be just slightly less than you are are supposed to have .. thats normal .. like yours says 3798MiB .. that would be 4GB ram – John Orion Dec 12 '17 at 7:46

You could as well use either top (preinstalled) or htop to monitor your memory usage.

It adds some details free doesn't (context to running processes)

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