intro to linux and virtualization

Today I will be going over what computer virtualization is why it's used and will go over some commands on the command line to get new people familiar with typing commands

ubuntu project(external link): https://ubuntu.com/
oracle virtualbox project(external link): https://www.virtualbox.org/

commands for to remember here for reference:
free
lsblk
lspci
lsusb
cat
apt get