püsisalvestus

Püsisalvestus, also known as persistent storage, refers to the ability of a computer system to retain data even after the power supply has been turned off. This contrasts with volatile storage, such as RAM (Random Access Memory), which loses its contents when the power is interrupted. Püsisalvestus is essential for storing operating systems, applications, and user files, allowing them to be accessed and used across multiple sessions.

Common examples of püsisalvestus include hard disk drives (HDDs), solid-state drives (SSDs), USB flash drives, and optical media like CDs and DVDs. These storage mediums employ various technologies to maintain data integrity without a continuous power source, typically through magnetic or electronic means. The reliability and lifespan of püsisalvestus devices are important considerations for data management and backup strategies. The term is widely used in computing contexts, particularly when discussing data persistence, system recovery, and data transfer.