diff --git a/README.md b/README.md
index d698700..f0607e2 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,8 @@ Source for OUP/M - a CP/M-like operating system for 6502
 
 Original source here:
 https://archive.org/details/OUPMA6502OperatingSystem
+
+My goal is to compile a binary for emulation.
+
+From the original:
+"In the development of OUP/M, an OSI C-3 microcomputer system was used. This system consists of a 6502 CPU, a dual 8-inch floppy disk drive, a console, a printer, and 56 K bytes of RAM. On this machine all I/O is memory mapped and address space layout has to be taken into consideration."