From the course: CompTIA A+ Core 1 (220-1201) Cert Prep

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32-bit vs. 64-bit computing

32-bit vs. 64-bit computing

From the course: CompTIA A+ Core 1 (220-1201) Cert Prep

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32-bit vs. 64-bit computing

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- As we discussed in an earlier episode, the primary difference between any 32-bit architecture and any 64-bit architecture is the amount of data it can address in RAM. Each address point to a single location or byte in RAM. The calculation for this is two to the power of the number of bits of the architecture. So a 32-bit system can address two to the 32nd power, or roughly four gigabytes. A 64-bit system can address two to the 64th power, or roughly 16 exabytes. The 32 bits and the 64 bits represent two primary values, the width of the address bus and the data bus. The address bus request data from RAM and the data bus transfers the data to and from RAM. Nearly all the computers of any type that have sold over the past five years or so, and in some cases longer than that, have been 64-bit systems. However, there are still 32-bit systems in use. Most Linux distros still have 32-bit versions. Mac OS 10.14 Mojave was the last of the 32-bit Apple operating systems. Windows 10 was…

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