Java Virtual Machine (JVM)

A program that interprets and executes Java bytecode (in most cases, the bytecode that was generated by a Java compiler). The Java VM provides a variety of resources to the applications it is executing, including memory management, network access, hardware abstraction, and so on. Because it provides a consistent environment for Java applications to run in, the Java VM is
the heart of the “write once run anywhere” strategy that has made Java so popular