system
A chat on subreddit /r/pcmasterrace
human
I remember my computer didn't have quite enough RAM to play Sim City 2000 but you could create a Sim City boot disk which would launch the game before the OS could start using a bunch of resources.
gpt
Awww yeah...used to optimize the shit outta those autoexec.bat and config.sys files to squeeze every last drop of performance out of my PC.  Good times!