Hurd, A stands for the recursive cross from HIRD of Unix-replacing daemons, which is the acronym for HIRD stands for HURD of interfaces representing depth. As HURD and HIRD, the two spelled differently for the English word herd. The full name GNU Hurd (GNU HURD) as well as a play on words Hurd herd, and the GNU gnus with contemplate to your kernel how it works.

the GNU Hurd ( Hurd called) is a core operating system that serves as a replacement for UNIX is designed. GNU Hurd as a free software under the GNU General Public License has been released. GNU Hurd since 1990 by the GNU project of the Free Software Foundation, has been developing.
the GNU Hurd consists of a set of protocols and processes, the server (or demon daemon in the so-called Unix) that in MN, the GNU Mach runs and have taken that with each other, the core of the operating system GNU to form. Objective Hurd surpass Unix operating systems in functionality, security, and stability, while greatly with this operating system is compatible. The GNU Project Architecture of server-server Mn because of the more benefits as compared to traditional architecture the core of an integrated Unix for the operating system chosen.