This stores 32-bit applications, while the other 'Program Files' folder contains all the 64-bit apps you've installed.Software & Apps What are 32-bit and 64-bit apps, and why do they matter? There is ne another way you can understand that if your PC is running 64-bit Windows, you'll probably find a Program Files (x86) folder on your hard drive.
Press the Windows key + X to open this menu. How to determine if Windows OS is 32-bit (x86) or 64-bit (圆4) 64 Bit, old Desktops and Laptops could be having Windows x86 which means 32 bit. Latest Laptops with pre-installed Windows are usually 圆4 i.e. 32 bit computers cannot run 64 bit programs, because the bit sizes are fundamentally different. The 64 bit computers can run both 32bit programs and 64 bit programs. The 32 bit processors are designed to handle a limited amount of physical memory maximum of 4GB but 64 bit can handle high memory utilizing 8,16 and some even32 GB. This was eventually shortened to 圆4 for 64 bit and x86 alone refers to a 32 bit processor. x86-32 (and x86-16) were used for the 32 (and 16) bit versions. When 64 bit processors compatible with the x86 architecture were introduced, they were referred to as x86-64.
It used to be written as 80x86 to reflect the changing value in the middle of the chip model numbers, but somewhere along the line the 80 in the front was dropped, leaving just x86. The term x86 started out as a 16-bit instruction set for 16-bit processors (the 80 processors), then was extended to a 32-bit instruction set for 32-bit processors (8036), and now has been extended to a 64-bit instruction set for 64-bit processors. It doesn't actually say anything specific about data sizes. Technically x86 simply refers to a family of processors and the instruction set they all use. It usually refers to x86 for 32 bit OS and 圆4 for system with 64 bit. Difference Between 32 bit & 64 bit Operating Systems
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