re how long do ram simm s last in article noah noah apple com noah apple com noah price writes in article apr ultb isc rit edu jek ultb isc rit edu j e king wrote doesn t a mb simm have about moving flip flops they don t move to anybody much bigger than an electron dynamic ram is not based on flip flops there s basically a single transistor and capacitor to store each bit static ram is based on flip flops and is much more expensive and much less dense and neither has any parts that move if electrons and thermal expansion are ignored noah chris chris wood bellcore ccw ctt bellcore com
