INIT HELLO

Back in the old days of the glorious Apple II, in order to "format" a brand new 5.25" inch double-density floppy disk, you had to boot with your DOS 3.3, then replace the disks and type:

] INIT HELLO

The drive will make some noise, flash its light and after a couple of seconds to one minute you will have amazing 143K (kilobytes) available to save your programs!

Well, that's all started!

PS: if you want to play around, check this:

An Apple ][ Emulator in JavaScript
     https://www.scullinsteel.com/apple2/

Or this:
     https://github.com/AppleWin/AppleWin

     http://virtu.codeplex.com/