Firmwarekerroksen

Firmwarekerroksen, often shortened to firmware, is a specific type of software embedded within a hardware device. Unlike regular operating system software that can be easily updated or changed by the user, firmware is typically stored in non-volatile memory chips such as ROM, EEPROM, or flash memory. This means the firmware persists even when the device is powered off. Its primary purpose is to provide low-level control and operation for the hardware components of a device.

Firmware acts as an intermediary between the hardware and the higher-level software or operating system. It contains the essential instructions that allow the hardware to boot up, perform basic functions, and communicate with other parts of the system. Examples of devices that rely on firmware include routers, printers, graphics cards, solid-state drives (SSDs), and even many household appliances like microwaves and washing machines.

Updating firmware, often referred to as "flashing," can introduce new features, improve performance, fix bugs, or enhance security for the hardware. However, firmware updates are usually more complex than standard software updates and carry a risk of rendering the device unusable if interrupted or performed incorrectly. Manufacturers provide specific tools and instructions for updating the firmware of their products. The term "kerros" in Finnish translates to "layer," implying its position as a fundamental software layer within the device's architecture.