Manualshelf

System Startup, Configuration, and Shutdown Reference Manual (32650-90892)

ManualsBrandsHP ManualsSoftwareMPE/iX 7.0 Operating System
21222324252627282930
Chapter 2 21
Initiating System Activity
2 Initiating System Activity
Separate firmware routines of processor-dependent code (PDC) and
input/output-dependent code (IODC) perform the system self-test and initialization after
resetting HP Precision Architecture hardware.
The initial program load (IPL), the first software retrieved from the boot device,
implements the operating-system-independent portion of the bootstrap process. The initial
system loader (ISL), a boot-device- based IPL utility, provides the user interface for
displaying or modifying system startup functions.