+1 for tab completion. It's possibly the single handiest feature of the shell.
Keep learning and trying, once you are somewhat familiar with the CLI...
1 GB will be barely enough for vanilla Ubuntu; if you're simply interested in trying Linux and are not insistent upon Ubuntu itself, you may want to...
Just follow morgaes' advice and use a lighter OS. Trying to run standard Ubuntu or heavy UIs such as cinnamon is what's causing your problems. Switch...
You can do the upgrade path, but I would strongly recommend a clean installation. Upgrades *can* be quite troublesome. It will remove programs you've...
I'm probably getting a bit out of my depth as I have zero experience with UEFI/Secure boot, but according to here you need to turn it off in the UEFI...