PSET "hat" graphic from old ad in BYTE

[CharlieJV]

Referring to first post in Cjarlie's link above:

What is TRAP, command or sub?

300 GOTO 300  ' LOL: GOTO LOL

Sniff like whatever BASIC that is, the console goes "poof" without that 300 GOTO 300 infinite loop.

Smart trick for vintage BASIC that doesn't yet have an alternative way of preventing the screen from disappearing or scrolling at end of program.

Whatever machine that was, it must've had a "Break" button to stop the program.