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An open source Altair emulator for Windows.
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An open source CP/M-80 ver2.2 emulator for MacOS.
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A freeware Chip-8 emulator for DOS.
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An open source CDC (Control Data Corporation) Cyber 6x00, 7x or 17x type mainframe emulator for Windows or Unix.
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An open source HP18C/28C emulator for Windows.
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An open source HP38/39/40/48/49 emulator for Windows.
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An open source 8051 emulator for Linux and Windows.
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An open source Mitsubishi Multi 8 for Windows and Windows CE.
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An open source Toshiba Pasopia emulator for Windows and Windows CE. [English/Japanese]
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Contains emulators for many different computers and calculators/PDAs for many different platforms. [English/Italian]
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Great emulation page maintained by JoseQ, maker of the famous Rumor Mill, many downloads, great layout - some hosted sites.
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Windows 9x/NT GUI emulation of SWTPc 6800 and 6809 systems. A Simulated Machine Environment (SME) emulation plus .dsk file downloads.
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An open source EurocomII/V7 emulator for Linux and Windows.
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Open source HP-42S emulator for Linux/i386, Mac OS, PalmOS, Pocket PC, Windows, and Zaurus X/Qt.
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A freeware Creativision, Funvision, and Whizzard emulator for Linux/SDL.
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An open source MIPS machine emulator for Linux.
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A freeware emulator for Windows of a system designed specifically for the Applied Systems Programming course at the University of Akron.
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Emulators for the Aquarius, the TRS-80 MC-10, the APF imagination machine, the NEC Trek (aka NEC PC-6001A) and the Panasonic JR-200U PC.
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A site dedicated to the emulation of Japanese Machines including X68000, PC6001, PC88, PC98, MSX 1/2/R, Sharp MZ, Sharp X1, Fujitsu FM7, and Fujitsu FM Towns.
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An open source emulator of the KC85 homecomputer series for Linux and Windows.
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An open source PowerPC emulator for Unix and Windows.
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Covers the development of a Heathkit H8 emulator on Macintosh.
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An open source collection of emulators for Windows of historical computers, including GRI-909, HP 2116/2100/21MX, IBM 1401/1620/1130/System 3, PDP-1/4/7-11/15/VAX. Also provides software kits, system photographs, and technical papers.
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A freeware Sprinter emulator for Linux/i386 and Windows.
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An open source Sol-20 emulator for Windows.
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A freeware BCL Susie V emulator for Linux/i386.
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A freeware emulator of CDP1802 based microcomputers for Mac OS X.
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An open source AM-100 micro computer emulator for Cygwin, Linux, and Mac OSX.
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An open source Dragon 32/64 and Tandy CoCo emulator for Linux , MacOS/PPC, GP32, and Windows.
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An open source SVI318/328, MSX1, MSX2, MSX2+, and Turbo-R emulator for Windows.
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An open source Bell Labs cardiac emulator for Linux and Windows/Cygwin.
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A Java-based simulator which implements the Mic-1 microarchitecture described in Chapter 4 of Andrew S. Tanenbaum, Structured Computer Organization, Fourth Edition. [Open source, GPL]
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A freeware ST20 emulator for DOS.
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Open source Premium Microbee 512Kb FDD emulator for Linux and Windows.
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An open source MIPS R3000 emulator for Unix.
