Noun
IA-64
(computing) An EPIC 64-bit instruction set architecture designed to allow relatively simple, cheap CPUs to execute many 64-bit instructions simultaneously and with potentially very high performance; developed by Intel in the late 1990s with the intent of replacing the older x86 architecture, but was delayed and proved uncompetitive with x86 (especially x86-64), seeing use only in Intel's own Itanium line of high-end CPUs.
A beta test version of AIX 5L for IA-64 systems was released, but according to documents released in the SCO v. IBM lawsuit, less than forty licenses for the finished Monterey Unix were ever sold before the project was terminated in 2002. Source: Internet
By 1997, it was apparent that the IA-64 architecture and the compiler were much more difficult to implement than originally thought, and the delivery of Merced began slipping. Source: Internet
Instruction accesses (fetches of instruction words) on a given processor may still assume a fixed endianness, even if data accesses are fully bi-endian, though this is not always the case, such as on Intel's IA-64 -based Itanium CPU, which allows both. Source: Internet
HP believed that it was no longer cost-effective for individual enterprise systems companies such as itself to develop proprietary microprocessors, so it partnered with Intel in 1994 to develop the IA-64 architecture, derived from EPIC. Source: Internet
Its MIPS based supercomputers were withdrawn in 2005 when SGI made the strategic decision to move to Intel's IA-64 architecture. Source: Internet