--- a/AbstractOperatingSystem.st	Mon Sep 07 10:06:57 2015 +0200
+++ b/AbstractOperatingSystem.st	Tue Sep 08 11:50:21 2015 +0200
@@ -1,3 +1,5 @@
+"{ Encoding: utf8 }"
+
 "
  COPYRIGHT (c) 1988 by Claus Gittinger
 	      All Rights Reserved
@@ -3853,6 +3855,12 @@
     "Modified: / 17-11-2004 / 01:43:35 / cg"
 !
 
+getNumberOfOnlineProcessors
+    "answer the number of physical processors in the system which are currently online"
+
+    self subclassResponsibility
+!
+
 getNumberOfProcessors
     "answer the number of physical processors in the system"