How much memory does win732 bit support?

Win732-bit system can only support 4G memory by default, but it will not be 100% recognized. Many users install 32-bit systems due to special needs. Of course, I will not mention it for elderly machines. Let’s take a look at the memory introduction of Xiangxiang Bar.

How much memory does win732-bit support?

1. The relationship between memory and operating system

Theoretically, a 32-bit system supports a maximum of 4G memory. However, it is actually impossible to use 4G of memory. The maximum value is between 3.25-3.75, which varies depending on the Windows version.

How much memory does a 32-bit system support? Computer diagram 1

2. The relationship between the operating system and the CPU

The amount of memory recognition and the computer Addressing of the CPU is directly related. The 32-bit operating system can theoretically recognize 2 to the power of 32 addresses (4294967296B = 4GB), but the computer also needs to be connected to peripherals (mouse, printer, keyboard, network card, sound card, graphics card, etc.). These peripherals also need to be occupied. address space.

32-bit computer illustration 2

Therefore, in the early stage of designing the system, a part of the space is reserved for these devices. In this way, although win7 32-bit can It supports 4G memory, but it cannot actually reach 4G memory. Generally, the memory displayed by win7 32-bit is about 3.25G. In other words, the win7 32-bit operating system has an 8G memory module installed, but the actual recognition is still less than 4G.

System computer diagram 3

3. Maximum memory of 32-bit and 64-bit systems

32-bit system has a maximum recognition of 3.75G memory

64-bit system can recognize up to 128G of memory

So if your computer has only 2-3G of memory, install win7 32-bit system, and if your computer has more than 4G of memory, install win7 64-bit system. good.

32-bit computer illustration 4

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