[Coco] OS-9 Easter egg?

[mike delyea]

My Coco is in storage right now but has anybody seen this?

The OS-9 operating system has a file manager called "SCF" which
handles serial devices such as the console. One of the system calls
available will "stuff" the input buffer with a string which can later
be recalled by using the CTRL-A ("again") keyboard sequence.

Microware programmers hid a credit string inside this buffer which you
can obtain by typing "CTRL-A" on a serial prompt that has never been
used (unless the program clears it).

The easiest way to see this on most OS-9 systems is by pressing
"CTRL-A" at the LOGIN prompt. On some versions, pressing CTRL-A at the
OS-9 shell prompt when you first boot up will also produce it.