Firmware is basically a software type which is pre-installed in the device non volatile memory(like ROM) from the device manufacturer.

We can not change or access the firmware easily

It can be updated if the manufacturing company allow us to update.The update is for bug fixes or adding new features to the device

It can be hacked

Why it is required

  • It defines the functionality of the device
  • it is controlling software for modern electronic
  • used to run an application program on the device
  • used to protect the device from malware

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