A "64-bit version" refers to a type of computer architecture that can process data in 64-bit chunks. This allows for greater memory addressing capabilities, enabling systems to utilize more than 4 GB of RAM, which is the limit for 32-bit versions. As a result, 64-bit systems can handle more complex applications and multitasking more efficiently. Many modern operating systems, such as Windows, macOS, and Linux, offer 64-bit versions to take advantage of this increased performance. Additionally, software applications designed for 64-bit systems can run faster and more smoothly, making them ideal for tasks like gaming, video editing, and data analysis.