Below is the beginning of a simple 'virtual machine' that I've been trying to make in javascript to carry out assembly code. At the moment it is only working for adding and subtracting one line at a time and it gives the output in the console. Over time, I would like to develop this to be more functional with a few instructions.
Virtual machines are a very useful way to use any hardware and/or operating system to replicate that of a different OS. They provide a digital version of physical computers by using software to imitate dedicated hardware.
Advantages of using a virtual machine include being able to run different operating systems simultaneously; security; having seperate memory; and portability as virtual machines can easily be moved between different physical machines or cloud environments.
Some disadvantages of virtual machines, however, may include hardware limitations as performance may be limited bu the resources available on the host machine; security risks as malicious code running in a virtual machine can put the host machine or other VMs running at risk; and complexity, especially when multiple VMs are involved.