Virtual Machines

• What is a virtual machine?

  A program with the functionality of a physical computer
• Which type of games can be emulated on modern hardware?


  Arcade games from the 1980s
• How do emulators trick programs?

  They simulate native hardware on different machines
• What happens to programs when they are emulated?

  They remain unaware they are being emulated
• What are the advantages of using virtual servers over physical servers?

  • Multiple virtual servers on fewer physical servers
  • Easy to scale with demand
  • Load balancing across physical devices
  • Redundancy if a server fails
• How does emulation support game development?

  It allows testing on different platforms before release
• Why is Java considered highly portable?

  It compiles code into intermediate code for various devices
• What is the key question addressed in the video?

  What is a virtual machine?
• What is an example of intermediate code?

  Bytecode in the Java programming language
• What does the Java Virtual Machine (JVM) do?

  Translates intermediate code into machine code