What are the differences between 32-bit and 64-bit computers?

Difference 1: Data processing capability
The CPU of a 32-bit computer can process up to 32-bit data at a time. For example, its EAX register is 32-bit. Of course, a 32-bit computer can also process 16-bit and 8-bit data. 64 indicates that the computer processes data much larger than 32-bit data at a time and runs 64-bit data at a time.

Difference 2: different memory (different addressing capabilities)
Many 32-bit systems support 4 GB of memory, while 64-bit systems support hundreds of GB of memory.

Difference 3: different architectures
The change from 32-bit to 64-bit architecture is a fundamental change because most operating systems must be comprehensively modified to achieve the advantages of the new architecture. Other software must also be transplanted to use new performance. Older software is generally supported by hardware compatibility mode (the new processor supports older 32-bit version instruction sets) or software simulation.
Or directly implement the 32-bit processor Kernel in a 64-bit processor (like Intel's Itanium processor, which contains the x86 processor Kernel for executing 32-bit x86 applications ). Supports 64-bit operating systems. Generally, 32-bit and 64-bit applications are supported at the same time.

Difference 4: different configuration requirements
The 64-bit operating system can only be installed on 64-bit computers (the CPU must be 64-bit ). At the same time, 64-bit common software must be installed to achieve the best performance of 64-bit (x64. A 32-bit operating system can be installed on a 32-bit (32-bit CPU) or 64-bit (64-bit CPU) computer.
Can a 64-bit operating system coexist with a 32-bit operating system? The answer is yes. You can install a dual system, but you must note that a 32-bit system above 4 GB can only recognize 4 GB at most, therefore, if it is a large memory installation, users still prefer 64-bit systems. After all, the latter is more advanced. The difference between win732-bit and 64-bit is that you have some knowledge now.

How much memory does a 32-bit 64-bit processor support?

The maximum supported memory is directly related to the operating system. Even a 64-bit processor uses a 32-bit operating system to support a maximum of 2 to the power of 32, which is 4 GB. In windows 32-bit operating systems, the maximum value is between 3.25 and 3.75, which varies depending on the windows version. The addressing capability of the 64-bit operating system is the power 64 of 2. That is, 17179869184 GB. Of course, this is only the theoretical value. In practice, it is impossible to use such a large memory. Currently, 64-bit windows systems support a maximum of 128 GB. The current mainstream motherboard can only be added to 16 GB

Whether the cpu is 32-bit or 64-bit

1. If your computer was born after 2005, it is very likely to be 64-bit.

2. On the desktop, right click ----- my computer ---- device management. Find the processor. If we see two or more processors, they must be 64-bit.

3. In addition, you can view your CPU model in my computer --- properties, such as E2180. You can search Baidu for this model to find the number of digits.