graphical

FRANK OS is a newly launched open-source graphical desktop operating system specifically designed for microcontrollers, with its first official version, 1.0, now available. It is built on FreeRTOS rather than the Linux kernel, optimized for the RP2350 microcontroller, which has approximately 520 KB of SRAM and dual CPU cores. The operating system features a desktop environment reminiscent of Windows 95, including overlapping windows, a taskbar, and a start-menu-style launcher. It supports standard desktop behaviors and allows users to switch between applications using an Alt+Tab-style interface. FRANK OS comes preloaded with nine lightweight applications, such as an interactive terminal, a C compiler, classic games, and a ZX Spectrum emulator. Programs can be compiled as ARM ELF binaries and loaded from an SD card. The system is aimed at hobbyists and experimental use.