Which of the following technologies can detect and fix single bit memory errors?

RAID (Redundant Array of Independent Disks) is a storage virtualization technology for data redundancy or performance, not for memory error correction.

Registered memory (or buffered memory) includes a register to stabilize electrical signals for large memory configurations but does not actively correct bit errors.

SDRAM (Synchronous Dynamic Random-Access Memory) is a general type of RAM that operates synchronously with the processor's clock but does not inherently include error correction capabilities.

Error-Correcting Code (ECC) memory uses additional parity bits and an algorithm to detect and automatically correct single-bit memory errors. This functionality is crucial in servers and workstations where data integrity is paramount, preventing system crashes and data corruption due to memory faults.