WOW64 é um subsistema do sistema operacional Windows que permite que aplicativos baseados no Windows de 32 bits sejam executados no Windows de 64 bits.
x86-64 (also called x86_64, x64, or amd64) is the 64-bit CPU architecture that is used in Intel and AMD processors. It is an extension to the 32-bit x86 (i386) architecture. The x86-64 architecture is used in most CPUs for home computers and servers in use today.
As its name suggests, the 32 bit OS can store and handle lesser data than the 64 bit OS. More specifically, it addresses a maximum of 4,294,967,296 bytes (4 GB) of RAM. The 64 bit OS, on the other hand, can handle more data than the 32 bit OS.
The 64-bit versions of Windows use the Microsoft Windows-32-on-Windows-64 (WOW64) subsystem to run 32-bit programs without modifications. The 64-bit versions of Windows don't provide support for 16-bit binaries or 32-bit drivers.
x86 refers to a 32-bit CPU and operating system while x64 refers to a 64-bit CPU and operating system. Does having more amount of bits in each operating system have any benefits? Of course! This is one of the main reasons the number of bits keeps increasing over the years from 16-bits to 64-bits currently.
The regular Program Files folder holds 64-bit applications, while "Program Files (x86)" is used for 32-bit applications. Installing a 32-bit application in a PC with a 64-bit Windows automatically gets directed to Program Files (x86).
The Wow6432Node registry entry indicates that you are running a 64-bit Windows version. The operating system uses this key to display a separate view of HKEY_LOCAL_MACHINE\SOFTWARE for 32-bit applications that run on 64-bit Windows versions.
In computing on Microsoft platforms, WoW64 (Windows 32-bit on Windows 64-bit) is a subsystem of the Windows operating system capable of running 32-bit applications on 64-bit Windows.
On April 14th, 2012, build 15595 appeared on the PTR, but no 64-bit client until April 16th, 2012. Although Patch 4.3. 4 went live on April 17th, 2012, it was still in testing for about 7 hours before the 64-bit version was made available.
Click Start, type system in the search box, and then click System Information in the Programs list. When System Summary is selected in the navigation pane, the operating system is displayed as follows: For a 64-bit version operating system: X64-based PC appears for the System Type under Item.
It is commonly believed that native 64-bit applications are faster than 32-bit applications, but that's not always the case. In fact, some 64-bit applications are slower because data structures tend to be larger in 64-bit applications (again, due to the larger pointers) and moving them around can slow things down.
The moniker “x86” developed as an extension of the naming pattern started with the Intel 8086. The precise generation or variant of the architecture is denoted by the “x” in “x86.” As a result, when the architecture switched to 32-bit, it kept the “x86” moniker to stay true to its historical roots.
While 32-bit architectures are still widely-used in specific applications, the PC and server market has moved on to 64 bits with x86-64 and other 64-bit architectures since the mid-2000s with installed memory often exceeding the 32-bit 4G RAM address limits on entry level computers.
In the System Properties window, click the General tab. If the text beneath System says Microsoft Windows XP Professional x64 Edition, then you are running a 64-bit edition of Windows XP. Otherwise, you are running a 32-bit edition.
How to Check if Windows 10 is 32-bit or 64-bit. Press the Start button, then select Settings. Click on System. Go to About and look for the System type field to check your bit version.
See the “Details” button in the section “system” as demonstrated below: The “Operating System Type or OS type” is listed in the “Overview” screen as either 32-bit or 64-bit, paired with other information about your Ubuntu system type.
