![]() ![]() BIOS is responsible for initializing the hardware prior to handing the system controls over to the operating system. ![]() One common example of Firmware is the Basic input/output system (BIOS) that resides inside the ROM of the computer’s motherboard. ![]() Moreover, such firmware is more sophisticated than low-level firmware. A subsystem firmware comes with an embedded system and also can be updated. A low-level firmware cannot be updated or rewritten, while high-level ones allow updates. This is what distinguishes firmware from software.įirmware is classified into low-level, high-level, and subsystem firmware. This indicates that firmware resides on the hardware and loads immediately after the device is turned on. When you check the layers of computer architecture, you will find firmware right above the hardware. All it does is initiate the basic instructions on a computer, and it does not even require an operating system, unlike the software. This piece of software is designed using low-level programming languages and is embedded into the non-volatile memory-for instance, PROM.įirmware is required to keep a computer functional even in the absence of all other software.
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