Dunia Virtual Semakin mem-Virtual-isasi Dirinya
A virtual machine (VM) is a software implementation of a machine (i.e. a computer) that executes programs like a physical machine. In computing, hardware virtualization is a virtualization of computers or operating systems. It hides the physical characteristics of a computing platform from users, instead showing another abstract computing platform. A virtual applianc e is a virtual machine image designed to run on a virtualization platform (e.g., VirtualBox, Xen, VMware Workstation). An emulato r in computer sciences duplicates (provides an emulation of) the functions of one system using a different system, so that the second system behaves like (and appears to be) the first system Dan ketika semuanya melewati berbagai macam abstaksi, Aplikasi harus melewati berberapa Compiler/Interpreter hingga pada akhirnya menjadi assembler. Disana pastilah ada beberapa Optimization. Semakin abstrak sebuah sistem, pada akhirnya akan membutuhkan lebih banyak resource untuk menanganinya. Yang Pasti