DIY from entry to abandonment: why is the 32-bit system obsolete?

Since Windows 11, Microsoft's Windows system no longer provides a 32-bit version, and all use 64 bit systems. Why will 32-bit be eliminated? What are the advantages of 64 bit? Will there be 128 bit systems in the future? Let's talk about the secrets of the operating system.

First, let's briefly introduce 32-bit and 64 bit systems. Here, 32-bit refers to the processor architecture of the operating system. In the early computer development, the 32-bit operating system was the standard configuration, which meant that the CPU could only process 32-bit data at a time, that is, 4 bytes.

This architecture is sufficient for early applications and memory limitations, but with Software With the increase of complexity and data volume, the 32-bit system gradually exposes its limitations - the biggest problem is that the addressing space is limited, and theoretically it can only support 4GB RAM at most (the actual available RAM is often less than 4GB). This obviously cannot meet the demand of modern applications for a large number of memory resources.

sixty-four The emergence of the 32-bit operating system solves these problems. It can process 64 bit data at one time, that is, 8 bytes, thus greatly improving the working efficiency of the processor. More importantly, the 64 bit architecture provides more memory addressing space, which can theoretically support up to 16EB of memory, which is more than enough for any existing desktop or server application. In addition, 64 bit systems have significant advantages in computing speed, multitasking capability, large databases, image processing, scientific computing and other fields.

It is easy to find that 64 bit systems have incomparable advantages over 32-bit systems, so 64 bit systems have replaced 32-bit systems. However, if we want to use 128 bit systems, we have to wait.

At present, 64 bit processors and their corresponding memory technologies have not reached the bottleneck in most scenarios. Even the most advanced data centers and supercomputers are far from using up the addressing capabilities provided by the 64 bit architecture.

In addition, building a 128 bit architecture also faces considerable technical challenges, including but not limited to the dramatic increase in chip design complexity, power control issues, and corresponding ecosystems (such as compilers drive Program, etc.), and there is no demand in Shanghai at present, so in the visible future, we will not have a 128 bit system environment, and 64 bit will be the mainstream system for a long time.

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