Raspberry Pi OS

Raspberry Pi OS is a Unix-like operating system developed for the Raspberry Pi line of single-board computers. Based on Debian, a Linux distribution, it is maintained by Raspberry Pi Holdings and optimized for the Pi's hardware, with low memory requirements and support for both 32-bit and 64-bit architectures. Originally released in July 2012 under the name Raspbian, it was introduced shortly after the launch of the first Raspberry Pi model.