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DOSBox is a free and open-source emulator which runs software for MS-DOS compatible disk operating systems—primarily video games. [5] It was first released in 2002, when DOS technology was becoming obsolete.
Virtual DOS machines can operate either exclusively through typical software emulation methods (e.g. dynamic recompilation) or can rely on the virtual 8086 mode of the Intel 80386 processor, which allows real mode 8086 software to run in a controlled environment by catching all operations which involve accessing protected hardware and forwarding them to the normal operating system (as exceptions).
The difference between running DOSBox compared to a virtual DOS session in Microsoft Windows (cmd.exe or command prompt) is that DOSBox gives you the Z:\ and will not allocate drive letters for other partitions or storage devices automatically. This is an important difference between DOSBox, real DOS and a "DOS Window" within Microsoft Windows.
GPL version 2; full version with extra enterprise features is proprietary Virtual Iron 3.1 Virtual Iron Software, Inc., acquired by Oracle x86 VT-x, x86-64 AMD-V x86, x86-64 No host OS Windows, Linux Proprietary, some components GPLv2 [10] Virtual Machine Manager: Red Hat: x86, x86-64 x86, x86-64 Linux Linux, Windows GPL version 2
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RetroArch's version 1.0.0.0 was released on January 11, 2014, and at the time was available on seven distinct platforms. [ 12 ] On February 16, 2016, RetroArch became one of the first ever applications to implement support for the Vulkan graphics API, having done so on the same day of the API's official release day.
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Supports the word size and addressing modes of the iAPX86 processor family's "real mode", while still running within the full protected mode environment; Trap all DOS and BIOS system calls and emulate such calls as needed for proper operation and good performance; Simulate a hardware environment over which DOS programs are accustomed to having ...