Mac OS X 10.6 Snow Leopard: Road to 64-Bits

Next year's 10.6 reference release of Mac OS X promises to deliver technology updates throughout the system without focusing on the customer-facing marketing features that typically sell a new operating system. Here's a look at what those behind-the-scenes enhancements will mean to you, starting with new 64-bit support. By the end of the 80s, Apple […]

Next year's 10.6 reference release of Mac OS X promises to deliver technology updates throughout the system without focusing on the customer-facing marketing features that typically sell a new operating system. Here's a look at what those behind-the-scenes enhancements will mean to you, starting with new 64-bit support.

By the end of the 80s, Apple had delivered full 32-bit hardware with the Mac II's 68020 processor and the "32-bit clean" Mac System 7 software, which together enabled applications and the system to theoretically use as much as 4GB of directly addressable memory. By 1995, Microsoft was shipping its own 32-bit Windows API with WinNT and Win95 to take advantage of Intel's 32-bit 80386 and 486 CPUs.

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