The zx2000 comes with
Both systems will be available for order Thursday and will begin shipping in mid-May, company spokeswoman Jean Shimoguchi said. They use Windows XP 64-Bit Edition Version 2003, which Microsoft released to manufacturers March 28.
The arrival of Windows for Itanium is very important for HP, which will use the new 64-bit processor to unify server lines that today use five different processor architectures. Before, products could run only Linux from Red Hat and SuSE, along with HP-UX, HP's version of Unix.
In one illustration of the importance of Windows, HP said last week it expects the sales rate of its top-end, 64-processoronce the version that can use Windows goes on sale later this year.
HP worked with top Linux seller Red Hat to accelerate the release of anoperating system, now called .