Not to dispute points made by above diatinguished gentlemen, but the current bloated state of modern software has alot to do with that.
You CAN run simple programs like I guess the original Apollo launch program, or old school chess apps:
https://www.mobileread.com/forums/sh...07&postcount=4
Or even an OS:
https://www.mobileread.com/forums/sh...d.php?t=337972
Or try a chroot environment if you have a weekend to kill:
https://www.mobileread.com/forums/sh...d.php?t=355579