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Submitted by sailfrog on 2006-06-12 Update by ozar on 2009-07-30
QEMU is a vmware like system emulater. It has two operating modes:
* Full system emulation. In this mode, QEMU emulates a full system (for example a PC), including a processor and various peripherials. It can be used to launch different Operating Systems without rebooting the PC or to debug system code.
* User mode emulation (Linux host only). In this mode, QEMU can launch Linux processes compiled for one CPU on another CPU.
An optional proprietary QEMU Accelerator Module is available to optimize the case where a PC is emulated on a PC. This module enables QEMU to run most of the target application code directly on the host processor to achieve near native performance.