All modern Windows, Mac and Linux operating systems are divided by bitness into 32-bit (x86) and 64-bit (x64).
The main difference between 64-bit programs on 64-bit systems is that they can access memory size 2 to the 64 power. 32-bit operating systems are limited to accessing RAM from 2 to 32 degrees. Therefore, 32-bit operating systems do not support more than 4 GB of RAM.
Instructions
Step 1
Also, 64-bit systems promise the user better performance and reliability of the firewall, as well as the overall stability of the system. In contrast, 32-bit systems offer a wider range of software. This is especially noticeable on the Microsoft Windows OS. However, for x64-OS, not any processor is suitable, but only one whose architecture is capable of performing 64-bit operations.
Step 2
To find out the bitness of the operating system, in Windows XP go to the "Start" - "Run" menu. In Windows Vista or Windows 7 go to "Start", select "Programs" - "Accessories" and click on the "Run" shortcut.
A window will open to launch applications. Enter “dxdiag” (without quotes) in it and click “OK”. This program calls the DxDiag diagnostic tool. If you are launching it for the first time, you will need to wait about a minute, and also confirm the first launch.
In the main tab "System" in the column "Operating system" you will see the bit depth after the full name of the OS, for example, Windows XP Home Edition 32 bit, or, Windows 7 Home Extended 64-bit. The bit in this case is equal to the value of the word bit.
