Ham Radio General Class Practice Test 2025 – Complete Exam Prep

When memory is described as "non-volatile," it refers to the capability of that memory to retain stored information even in the absence of power. This characteristic is crucial for devices that require data to be preserved between sessions of use or when the device is powered off. For example, non-volatile memory types include flash drives, ROM, and certain types of EEPROM, which are commonly used in various electronic devices such as computers, smartphones, and radios.

The other options refer to different aspects of memory but do not pertain to non-volatility. For instance, resistance to radiation damage or high temperatures speaks to the durability of the memory in extreme conditions, while the ability to change stored information relates to the memory's mutability. Non-volatile memory specifically emphasizes the retention capability in power-off scenarios, distinguishing it from volatile memory types like RAM, which require power to maintain stored data.