Static memory refers to a type of computer memory that retains data without needing constant power. It is often used in applications where data must be preserved even when the device is turned off. This type of memory is typically faster and more reliable than dynamic memory, making it suitable for critical applications. One common form of static memory is SRAM (Static Random Access Memory), which is used in cache memory for CPUs (Central Processing Units). Unlike DRAM (Dynamic Random Access Memory), which requires periodic refreshing, static memory maintains its state as long as power is supplied, providing quicker access to stored data.