3 ms·
How many copies of unix (partitions, vms, containers) do you have on your computer?
How many copies of unix (partitions, vms, containers) do you have on your computer?
One?
TinyCore Linux is 12 MB. A fully functional Unix(-like) system, including an X server.
So, for one Javascript-written terminal app, you can install a full Linux system with X and a window manager 10 times (Hyperterm.app is 122 MB).