-who does not intend to extend YULE can plug in an iCEstick with the
-processor, and run the REPL. Then the user can write expressions in
-the REPL and get their values back. Besides being the entry point, the
-REPL serves as a convenient way to test that the entire system is
-working. An expression typed in the REPL goes through the compiler and
-assembler, and then is sent to the processor. It goes through the
-three stages of the processor (reading the expression into memory,
-evaluating the contents of the memory, writing a memory dump).
+who does not intend to extend YULE can plug in a USB device containing
+the YULE processor, and run the REPL. Then the user can write
+expressions in the REPL and get their values back. Besides being the
+entry point, the REPL serves as a convenient way to test that the
+entire system is working. An expression typed in the REPL goes through
+the compiler and assembler, and then is sent to the processor. It goes
+through the three stages of the processor (reading the expression into
+memory, evaluating the contents of the memory, writing a memory dump).