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Upgraded to CENTOS 6 - 64bit

Finally made the switch to CENTOS 6 - 64 BIT
Many of you might be wondering what's the difference between 32-bit an 64-bit operating systems. It all boils down to how values are stored in 32-bit versus 64-bit. For example, on a 32-bit machine, the number 1 might be represented as 00000000 00000000 00000000 00000001. I put spaces in between so its easier to read but in total: 32 numbers (which must be either 1 or 0 since its in bit format). So a 64-bit representation might then be 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000001 (64-bit format). Now this also corresponds to memory addressing and this is why 64-bit machines have a much higher memory addressing limit compared to 32-bit machines. As far as I can tell, a 32-bit OS can use up to 4GB of RAM properly while a 64-bit can use alot more than 4 GB (even more than 8GB). This also means that files for databases can be much larger than 2GB in size if you're on a 64-bit machine and thus is the major reason why companies and IT have been moving over to 64-bit architecture.

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