"Splashtop does this by launching from a Core Engine.
This is an embedded "proprietary real-time operating environment"
within the BIOS. Splashtop Linux lives in the motherboard's 512MB
flash memory firmware. Here, you'll find not only Linux and the
required drivers and networking tools the computer needs, but an
assortment of useful road warrior programs. Splashtop can be up and
working even before your hard drive ramps up to
speed."