A fat binary (or multiarchitecture binary) is a computer executable program or library which has been expanded (or "fattened") with code native to multiple instruction sets which can consequently be run on multiple processor types.
CP/M and DOS
Combined COM-style binaries for CP/M-80 and DOS
CP/M-80, MP/M-80, Concurrent CP/M, CP/M Plus, Personal CP/M-80, SCP and MSX-DOS executables for the Intel 8080 (and Zilog Z80) processor families use the same .COM file extension as DOS-compatible operating systems for Intel 8086 binaries.
References
Further reading
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