Das U-Boot (subtitled "the Universal Boot Loader" and often shortened to U-Boot; see History for more about the name) is an open-source boot loader used in embedded devices to perform various low-level hardware initialization tasks and boot the device's operating system kernel. It is available for a number of computer architectures, including M68000, ARM, Blackfin, MicroBlaze, AArch64, MIPS, Nios II, SuperH, PPC, Power ISA, RISC-V, LoongArch and x86.