What type of memory retains data after power is removed?

Nonvolatile memory is designed to retain data even in the absence of power. This characteristic makes it essential for long-term data storage in various devices. Examples of nonvolatile memory include Flash memory, ROM (Read-Only Memory), and hard drives, which store information that can be accessed later without needing a continuous power source.

In contrast, volatile memory, such as RAM (Random Access Memory), requires power to maintain the integrity of the stored data. Once the power is removed, the data in volatile memory is lost. The terms "secured" and "unsecured" memory do not refer to the retention characteristics of the memory itself, but rather to the protection measures applied to data contained within a storage medium. Therefore, while "secured" and "unsecured" can describe the state of data protection, they do not accurately define the fundamental capability of data retention after power is removed.