It was developed by Werner Almesberger initially and thereafter developed by the latest developer John Coffman. LILO is a boot manager that can boot every Operating System that is installed on the system. It is basically run from a hard disk but can also run from a floppy disk. It can also act as a boot loader / secondary loader.
LILO configurations in /etc/lilo.conf and can be edited by any text editor, on many systems. There is a configuration program liloconfig, this will prompt for basic configuration parameters which are written to /etc/lilo.conf.