What is meant by flashing a computer?

Flashing a computer refers to the process of updating or replacing the firmware or software stored in the device's memory, typically the BiOS or UEFI. This process can improve system performance, add new features, or fix bugs. It often involves downloading the new firmware from the manufacturer’s website and using a specific utility to install it. However, flashing should be done cautiously, as an incorrect update can render the device inoperable.