For many users who are not very familiar with the Windows7 system, they do not understand why it is obvious that 8G memory only shows 4G in the computer. What is the situation? In fact, this is related to the number of computer system bits. There is a very interesting situation. Although a 64-bit computer can be installed with a 32-bit operating system, a 32-bit computer must not be installed with a 64-bit operating system. Why is this? Today, we will learn a few different points from the Windows 7 system 64-bit system and 32-bit system with our system home. Answer your questions. First of all, we will introduce separately, as follows.
64 Wei
first Windows7 system, designed different
64-bit operating system is designed to meet the mechanical design and analysis, 3D animation, video editing and authoring And customer needs that require large amounts of memory and floating point performance in areas such as scientific computing and high performance computing applications.
a second, different configuration requirements
64-bit operating system can be installed only on a 64-bit computer (CPU must be 64-bit). At the same time, 64-bit commonly used software needs to be installed to achieve the best performance of 64-bit (x64). The 32-bit operating system can be installed on a 32-bit (32-bit CPU) or 64-bit (64-bit CPU) computer. Of course, the 32-bit operating system is installed on a 64-bit computer, and its hardware is just like a "big horse car": 64-bit performance will be greatly reduced.
Third, the operation speed different
64 CPUGPRs (General-PurposeRegisters, general purpose registers) the data width of 64 bits, 64-bit 64-bit instruction set operating data instructions, i.e. The processor can extract 64-bit data at a time (as long as two instructions, extracting 8 bytes of data at a time), doubling the performance of 32 bits (requires four instructions, extracting 4 bytes of data at a time), theoretical performance Will increase by a factor of two.
fourth, advantage of the ability of different addressing
64-bit processor is further reflected in the control system memory. Since the address uses a special integer, an ALU (Arithmetic Logic Operator) and registers can handle larger integers, which are larger addresses. For example, WindowsVistax64Edition supports up to 128GB of memory and up to 16TB of virtual memory, while 32-bit CPUs and operating systems can only support up to 4G of memory.
you may also like: Win7 32-bit systems can not use 4G memory solutions
fifth, the popularity of different software
Currently, 64 commonly used software than the 32-bit software It's much less. The reason is simple: there are relatively few users using a 64-bit operating system. Therefore, software developers must consider the "input-output ratio" and invest limited funds into the software of more users. This is also an important reason why 64-bit software is relatively expensive (to spread costs into fewer offerings).
here emphasized that although the 64-bit computer can install 32-bit operating system, but the 32-bit computer must not install 64-bit operating system. This is important to keep in mind to avoid blind downloads and installations. If you don't know if your computer's CPU is 64-bit, you can use some software to query. If you can use CPU-Z to complete the test, the latest version is 1.60.2., 32-bit operating system (this is Xiaobian himself). computer configuration)
64-bit operating systems can run 32-bit software it?
currently 95% of the software are compatible. Because the 64-bit version of Windows was not able to run 32-bit code. Because most applications are 32-bit, 64-bit Windows allows 32-bit applications to run in 64-bit environments by using a wrapper, known as WOW64.
64-bit operating system advantages? The first point
, the second point higher performance and scalability
, supports up to 16GB of memory and 16TB of virtual memory, This allows applications to quickly process large collections of data. The third point
, WindowsXP64-bit version has been specifically optimized for the Itanium platform, can take advantage of Itanium's major functions (such as EPIC Design).
fourth point, 64-bit floating point XP full advantage of the enhanced performance of Itanium platform. Fifth
, XP64-bit version designed to support multi-processing functions, maximize system performance and scalability.
technical applications and business applications that can use the same desktop
WindowsXP64 bit version is an integrated 64-bit applications and 32-bit integrated platform for business applications. This capability takes the company's productivity and collaboration to a new level.
in the management of 64-bit XP, you can use the same management tools 32-bit Windows systems to manage. This allows the company to use a standardized operating system for all desktops, which saves on management costs.
Windows offers the most extensive range of applications, hardware providers and support partners can provide customers with more choices to help them create their own solutions.
next-generation applications platform
the best use of Windows programming model, developers can use one code base to create 32-bit and 64-bit version of the application.
Windows has the most robust development tools can be applied to any platform, can easily build next-generation applications using these tools.
Microsoft led the development of the Microsoft.Net platform, developers can use this platform to integrate with the next generation of web applications.
system House Tips: 64-bit operating system and 32-bit capable operating systems coexist what the answer is yes, you can install dual system can be solved, but need to pay attention to more than 4G of memory on 32-bit systems? It can only recognize up to 4GB, so if it is a large memory installed user or a 64-bit system, the latter is more advanced.