QBasic is a high-level interpreted programming language included with MS-DOS since 1985.
Debug is a powerful DOS batch tool available in all versions of MS-DOS.
ASCII Assembler is a translation of .com file source code into ASCII characters. The resultant code is placed inside a DOS batch file and used to reconstruct the .com file by use of the ECHO command. No compiler or decompiler is required.
AWK is a complete pattern scanning and processing language.
SED can perform large-scale, non-interactive editing tasks.
Submitted sites should have content directly related to the category. This category is specifically for DOS batch where the standard (commonly available) general helping tools are employed: Qbasic, Debug, ASCII Assembler, AWK and SED.