MiNT is a multitasking enhancement to TOS; it replaces some TOS calls and adds new ones to enhance TOS. Note that it's not 100% TOS compatible, but most well-behaved programs (and many not so well behaved programs) run under it as well. It should work on any ST or TT, but I recommend having at least a megabyte of memory (on a 520ST there's not enough memory left to run large programs, especially more than one at a time!). The MiNT kernel is not terribly useful by itself (it does enhance TOS a bit with some new CTRL-ALT-key sequences), so some sample utilities are also provided, to do things like launching a program in the background, running two programs connected by a pipe, and running a background program on a separate screen. The MGR window manager has been ported to run under MiNT, and provides a nice graphical environment for people with 2 megabytes of memory. There are also command shells providing Unix like multitasking and pipe features; a small one (init.prg) is included with the MiNT kernel, and a larger one (the GNU bash shell) is provided separately. MiNT will be of particular interest to programmers, so the source code for the kernel and all utilities is provided, as is a customized version of the GCC library which is MiNT aware. Questions and comments about MiNT should be directed to me (Eric Smith) at ersmith@netcom.com, or posted to comp.sys.atari.st.