The e-leos project is divided into two main parts. The first one is the virtual machine that will run the JAVA code. The second part is the OS itself written in JAVA.

The VM is dedicated for x86 machines. The global performance of the system depends on how fast the VM is. That is why the e-leos VM is programmed using C and ASM. The code is compact and optimized. This part of the project is designed to be run only on x86.

The main concept of JAVA is : "Program once, run everywhere". This means that JAVA programs can run on any JAVA compatible virtual machine without any code manipulation. This argument is one of the main advantage of JAVA. So the second part of the project which is written in JAVA is designed in order to run on any JAVA VM.