The Free Software Foundation's Campaign for Free BIOS
In 1984 the GNU Project set out to make it possible to operate a computer in freedom--to operate it without any non-free software that would deny the user's freedom
At the time, the obstacle to this was simply the operating system. A computer won't run without an operating system, but all the modern operating systems of 1983 were proprietary, user-subjugating software. There was no way to use modern computers in freedom. We set out to change the situation by developing a free software operating system, called GNU.
When the kernel Linux became free software in 1992, it filled the last gap in GNU. The combined GNU/Linux operating system achieved our goal: you could install it in a bare PC, and run the computer without any installed non-free software.
Strictly speaking, there was a non-free program in that computer: the BIOS. But that was impossible to replace, and by the same token, it didn't count.
FSFAlso, here is the LinuxBIOS page:http://www.linuxbios.org/