What happens to SDRAM when it loses power?

When SDRAM (Synchronous Dynamic Random Access Memory) loses power, all its stored data is wiped. SDRAM requires a continuous power supply to maintain the electrical charge in its capacitors, which hold the binary data represented as bits. Once power is lost, these capacitors discharge and the data is lost immediately, making SDRAM volatile memory.

In contrast, other types of memory, such as non-volatile RAM or flash memory, are designed to retain data without a power supply. Therefore, when considering the characteristics of SDRAM, it is clear why the answer focuses on the complete loss of data upon power removal.