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| | Understanding 64-bit PowerPC architecture |
 | | Early in the 21st century, the need for impenetrable security has grown tremendously, sparking renewed interest in encryption and decryption algorithms, as well as desktop security. |
 | | To preserve the "power of two" relationships that people have come to expect, with 8, 16, and 32-bit words in existing architectures, developers are getting 32 more bits, resulting in an address space that is 4 billion times larger than the maximum address space of a 32-bit system. |
 | | Capable of addressing an astronomical 18 billion GB, or 18 exabytes, of memory, 64-bit integers also accelerate complex mathematical calculations through their ability to perform calculations directly on 64-bit numbers, as well as performing multiple operations on smaller numbers within a single CPU cycle (see Resources for the definition of exabyte). |
| www-128.ibm.com /developerworks/library/pa-microdesign (3819 words) |
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