Ham Radio General Class Practice Test

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What is meant by the term ROM?

Resistor Operated Memory
Read Only Memory
Random Operational Memory
Resistant to Overload Memory

The correct answer is: Read Only Memory

The term "ROM" stands for Read Only Memory. This type of memory is a non-volatile storage medium that retains data even when the power is turned off. ROM is primarily used in computers and electronic devices to store firmware, which is the software that is closely tied to particular hardware and unlikely to need frequent updates. The read-only characteristic means that the data stored in ROM can be accessed and read by the system, but it cannot be modified or erased under normal operation. This makes ROM an essential component for booting up systems and for functions that require reliable, consistent information that should not change. In contrast, the other options relate to terms that do not accurately describe ROM. For instance, resistor operated memory is not a recognized term in computer architecture, and random operational memory suggests a type of volatile memory that can be accessed and modified freely, such as RAM, rather than read-only storage. Additionally, resistant to overload memory is not a standard term in computing, as it does not relate to memory types in common terminology. Therefore, understanding that ROM is specifically designed for storage that is not typically altered helps clarify its unique role in computing systems.