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Summary
Name	Linux/i386 Binary Executable File ZMAGIC
Version
Other names
Identifiers	PUID: fmt/1672
Family
Classification
Disclosure
Description	ZMAGIC file format is a type of a.out (an abbreviated form of "assembler output") executable binary format used with Unix-like operating systems. The format was superseded by ELF file format with System V Release 4 around 1898, due to some limitations of the format. The ZMAGIC was the default a.out file format before they switched to QMAGIC files. Both formats of executable have a 32 byte header at the start of the file, but with ZMAGIC the .text section starts at byte offset 1024, while with QMAGIC the .text section starts at the beginning of the file and includes the header.
Orientation	Binary
Byte order
Related file formats	None.
Technical Environment
Released
Supported until
Format Risk
Developed by	None.
Supported by	None.
Source	The National Archives and Records Administration / The National Archives and Records Administration
Source date	22 Apr 2022
Source description	11/2023 (v.115)- File format type removed and description amended. Submitted by the Natinoal Archives and Records Administration.
Last updated	14 Nov 2023
Note	https://www.linuxjournal.com/article/1059 https://www.linux.org/threads/types-of-executables.9206/ http://ftp.icm.edu.pl/packages/linux-uk/alpha/alpha/asm8.html#obj_file_formats_section https://www.win.tue.nl/~aeb/linux/lk/lk-3.html https://en.wikipedia.org/wiki/A.out https://wiki.osdev.org/A.out