[koalahedron]

It's also interesting that QBasic (which I didn't use) is related to IBM Cassette Basic, the first language I used on the IBM PC. If the computer couldn't find a bootable floppy, it booted Basic from ROM:

https://en.wikipedia.org/wiki/IBM_BASIC#IBM_Cassette_BASIC

no OS needed, like the Apple ][, TRS-80, etc.