The first delay effects were achieved using tape loops improvised on reel-to-reel magnetic recording systems. By shortening or lengthening the loop of tape and adjusting the read and write heads, the nature of the delayed echo could be controlled.
Definition of VM. In Lawrence Associates' Virtual Manufacturing User Workshop report, Virtual Manufacturing (VM)is defined to be an integrated, synthetic manufacturing environment exercised to enhance all levels of decision and control. Design-Centered VM: provides manufacturing information to the designer during the design phase.
Overview of a Java virtual machine (JVM) architecture based on The Java Virtual Machine Specification Java SE 7 Edition. A Java virtual machine (JVM) is an abstract computing machine that enables a computer to run a Java program. There are three notions of the JVM: specification, implementation, and instance. The specification is a document that formally describes what is required of a JVM implementation.