I remember booting RT-11 on a DEC PDP/11 clone (LSI-11). You would turn it on (along with the Lear Siegler ADM-3A [or equivalent] terminal), and since it did n

I remember booting RT-11 on a DEC PDP/11 clone (LSI-11). You would turn it on (along with the Lear Siegler ADM-3A [or equivalent] terminal), and since it did not come with a hard-disk by default, you would insert the (8") boot floppy, and type 177170L at the (ROM) monitor prompt. The octal address was followed by a "L" which immediately caused the monitor to jump to the boot loader (also in ROM). After about five minutes, RT-11 would be up and running (just as shown on the terminal in the fine article).