64-bit computing is replacing 32-bit, mainly because 64-bit enables faster hardware and software. Here's the rundown on the ongoing 32-bit vs. 64-bit debate.

Assuming the software is designed correctly, porting form 32-bit to 64-bit should be simple. Simple like you don't have to change anything. 32-bit programs would just ignore half of each register ...

Your new computer has a 64-bit processor, but your software probably is still 32-bit. Why haven't software developers done more about it?

More and more frequently, users are installing the 64-bit version of their operating system of choice over the less capable 32-bit version.

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