Collapse OS usage guide This document is not meant to be an introduction to Forth, but to instruct the user about the peculiarities of this Forth implementation. The recommended introductory book is Starting Forth by Leo Brodie. This is the reference that was used to build this implementation and many of the conventions described in this book are followed in Collapse OS. Be sure to refer to the dictionary (B30) for a word reference. Contents 4 Number literals 6 Compilation vs meta-comp. 8 Interpreter I/O 11 Signed-ness 14 Addressed devices 17 DOES> 18 Disk blocks 21 How blocks are organized