===== Read-Only Memory (ROM) =====
[[ddsf:public:guidebook:06_append:glossary:start| Return to Glossary ]]

**Read-Only Memory (ROM)** is a type of storage medium that permanently stores data on personal computers (PCs) and other electronic devices. It contains the programming needed to start a PC, which is essential for boot-up; it performs major input/output tasks and holds programs or software instructions.

Because ROM is read-only, it cannot be changed; it is permanent and non-volatile, meaning it also holds its memory even when power is removed. By contrast, [[ddsf:public:guidebook:06_append:glossary:r:computermemory]] is volatile; it is lost when power is removed.

Source: [[https://www.techopedia.com/definition/2804/read-only-memory-rom | Read-Only Memory (ROM) ]]