A lot vs. Alot: 9 Grammatical Pitfalls
standard, file format
The file signature of an MS-DOS executable (.EXE) file (0x4d 5a), always the first two bytes of the file. It was reportedly invented by, and named after, a Microsoft programmer, Mark Zbikowski.
In Unix systems, the string MZ is the magic number that identifies an MS-DOS EXE file.
The country code for Mozambique.