The difference between 32-bit and 64-bit computer operating system The difference between 32-bit and 64-bit win7 system

The difference between 32-bit and 64-bit in Win7 system is already an old topic, but there are still many friends who don't understand. What is the difference between the two? The following article is a popular introduction to the difference between Win32 system 32-bit and 64-bit. Other in-depth theories, you can look at the extension link at the end of the article. It is worth mentioning that there are still some friends who will ask the difference between 32-bit and 64-bit in XP or Win8 system, which is the same as Win7.

1.32-bit and 64-bit operating systems mean: The ability of the CPU to process data at one time is 32-bit or 64-bit. CPUs on the market today are generally 64-bit, but these CPUs are not really 64-bit CPUs. They still retain most of the 32-bit technology, but only some 64-bit improvements. The difference between 32-bit and 64-bit also involves the addressing aspect of memory. The maximum addressing space of a 32-bit system is 2 to the power of 32 = 4294967296 (bit) = 4 (GB), and the maximum addressing of 64-bit systems. The addressing space of the space reaches 2 to the 64th power = 4294967296 (bit) of the 32nd power = the value is greater than 100 million GB. In other words, the 32-bit system's processor only supports up to 4G of memory, while the 64-bit system supports up to 100 million bits of memory.

2. If the CPUs on the market are all developed on 64-bit platforms, then all the software can't be used now, because most of the current software is based on 32-bit development. We said that the 64-bit windows7 system only adds some 64-bit addressing functions based on the 32-bit system. In fact, for us, the 64-bit CPU has little meaning for the operating system. After all, most of the memory we use. Still 2G, the commonly used software is used, and the operation speed is not very demanding. 64-bit is mainly used in large machinery or large service stations. So 32-bit and 64-bit are faster than 64-bit, but 32-bit is more suitable for us. If you install a 64-bit operating system, you will find that a lot of software can't be used.

The difference between 3.32 bits and 64 bits is that the amount of calculations at one time is different. In theory, 64 bits will be twice as fast as 32 bits, and memory addressing is different, but these are for us. Ordinary users are of little significance. For the current stage, 32 people will be more suitable for everyone.