HP-UX Customer Investment Protection
A key component of HP-UX 11i's successful introduction was that Hewlett-Packard offered binary compatibility for all native application software. Cost analysis over the 1990's showed unequivocally that investment in software now far outstrips that of hardware. Therefore, it is more important to provide legacy protection for software than for hardware.
In its design of the Itanium architecture, HP was able to provide a great deal of compatibility with PA-RISC without compromising the performance potential of Itanium. A great deal of compatibility between the PA-RISC and the Itanium architecture was retained. Key aspects of the compatibility between PA-RISC and the Itanium architectures include the following: ...
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