Description: One Java virtual machine (VM) for Windows CE systems that I researched recently is microJBlend, a product of Aplix Inc. While looking into microJBlend, I discovered that it is the offspring of a bigger brother, JBlend, yet another Java VM for real-time systems. These investigations led me to JTRON, the specification atop which JBlend was erected. JTRON is a specification that provides a Java interface to a real-time system for a wide range of small-scale computing devices, and it.