Look Up Another Term

Definition: SMM


(1) See social media marketing.

(2) (System Management Mode) An energy conservation mode built into x86 CPUs. Introduced with Intel's SL Enhanced 486 in 1993, SMM initiates a sleep mode during inactive periods that turns off peripherals or the entire system. It retains the computer's status in a protected area of memory called the "System Management RAM" (SMRAM).