file system
/bin - binary files for terminal commands and core utilities/boot - GRUB and files needed for boot - may be located on a separate partition/cdrom - optical drive might be mounted here/dev - devices - hard drives are mounted here, and sometimes other devices/etc - configuration files, e.g. for SSH or installed applications/home - where user folders are stored (~)/lib, /lib32, /lib64- libraries - files used for installed applications; somewhat comparable to Program Files on Windows/media - where external devices like flash drives might be mounted/mnt - another place external devices might be mounted, as well as remote folders/opt - “optional software for the system” ??/proc - processes - stuff used for the kernel to communicate with the running processes (?)/root - user account for the root user; its equivalent of home/run - a place where flash drives etc might automatically mount/sbin - similar to bin but for commands that can only be run by root or superuser/snap - where downloaded snap apps live/tmp - temporary files, usually deleted when system shuts down/usr - user - utilities shared between users/var - variable - system logs and other data, e.g. apache uses it as a default storage locationswapfile - the system swap (extra memory for when RAM is maxed out or whatever)