The integration of modem
controller and data pump algorithms
into a single RAM
hardware architecture. These integrated algorithms are stored on the computer's hard disk, from which they are downloaded into the DSP board's random-access memory (RAM). This downloading, or "booting" process of the PC-installed software algorithms occurs as part of the computer's power-up initialisation process in less than 100 milliseconds, making it transparent to the user.
[Digicom Modem FAQ version 2.03].