5 | | !VirtualBox is therefore different from mere emulators such as [http://fabrice.bellard.free.fr/qemu/ QEMU], which do not allow any guest code to run directly but translate every single machine instructions. While emulators theoretically allow running code written for one type of hardware on completely different hardware (say, running 64-bit Windows code on 32-bit hardware), they are typically quite slow. Virtualizers such as !VirtualBox, on the other hand, can achieve near-native performance for the guest code, but can only run guest code that was written for the same target hardware (such as 32-bit Linux on a 32-bit Windows host). |
| 5 | !VirtualBox is therefore different from mere emulators such as [http://fabrice.bellard.free.fr/qemu/ QEMU], which do not allow any guest code to run directly but translate every single machine instruction. While emulators theoretically allow running code written for one type of hardware on completely different hardware (say, running 64-bit Windows code on 32-bit hardware), they are typically quite slow. Virtualizers such as !VirtualBox, on the other hand, can achieve near-native performance for the guest code, but can only run guest code that was written for the same target hardware (such as 32-bit Linux on a 32-bit Windows host). |