64-bit processor

The 64-bit processor is backwards compatible with older applications and operating systems; it detects whether an application or operating system is 16-bit, 32-bit, or 64-bit and computes accordingly. This is essential for enterprise situations where purchasing new software is not feasible.

Intel, IBM, Sun Microsystems, Hewlett Packard, and AMD currently develop or offer 64-bit processors.

Read more about 64-bit processor: - HP's Integrity servers use the 64-bit Itanium processor developed jointly by HP and Intel. - AMD offers several servers that use its 64-bit Athlon processor. - ElectronicsNews.com.au reports that "AMD and Intel 64-bit architecture 'almost identical.'" - On Bitpipe, HP offers a white paper, "Choosing the Best Architecture for Data Protection in Your SAN?"

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