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'''PCem''' (an acronym for '''Personal Computer emulator''') is an open-source, [[High/Low level emulation|low-level]] [[Intel CPUsPOS_(Pong_Consoles)_CPUs_and_Other_Chips#Intel_CPU.27s|PC emulator]] developed for Windows and Linux. It focuses on PC hardware from the 1980s and 1990s. A variety of operating systems can be installed in the emulator, which can then be used to launch programs.