While there’s a dramatic overlap between firmware and software in modern technology, there are still some differences between the two. What they don’t know is that it’s not actually software that ensures all the programmes and functionality work with your hardware – that’s the operating system, device drivers and firmware.
Software is any program (or group of programs) run by a computer. The apps on your smartphone or tablet are software, but so is the Windows operating system on your laptop.
Other features that may change with firmware updates include the GUI or even the battery life. Most mobile phones have a firmware over the air firmware upgrade capability for much the same reasons; some may even be upgraded to enhance reception or sound quality. As do Android phones and tablets, like iPhones and iPads devices also need firmware updates. In these devices, you do not need to download and install the firmware manually, as they allow you to download and install the firmware from the device.
I’d compare the frequency (count for each value in the file) of instructions with the frequency of instructions derived from files for known processor types. That isn’t necessarily what your target wants to see, however. Sometimes they’re encrypted and signed, sometimes plain text. It might be a simple file, or something complex that is more than just your program. One main difference is the memory addressing in the firwmare binary, usually addresses are physical RAM address, since you do not have memory mapping feature on most of micro-controllers. This is transparent to the user, the compiler will abstract it. If this option is omitted, the endianness of the first firmware file on the command line is used.
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