UAE (or "UNIXAmigaEmulator") is an free software designed to run software written for the Amiga range of computers. Originally it was called the Unusable AmigaEmulator, due to it not even being able to boot, but that definition has since become obsolete.
UAE was originally called the Unusable AmigaEmulator, due to it not even being able to boot, but that name has since become obsolete.
Some considered UAE to be attempting the impossible; to be demanding that a system read, process and output 100 MB/s of data when the fastest PC was a 66 MHz 486, while keeping various emulated chips (the Amiga chipset) all in sync and appearing as they were supposed to appear to software.
UAE provides a "video card" for the Amiga side of emulation which is tailored for display on the PC hardware, rather than have to go through the complex emulation of Amiga's video hardware.