 In 1963, Lee accepted a one-year appointment to work on Project MAC, a time-sharing Multiple Access Computer being developed at MIT under the direction of Robert Fano.Fano launched Project MAC with a 6-week summer session that drew 57 people (including Lee) from universities, industry, and government for brainstorming and collaboration.At the end of the session, Lee described his work on speeding up computer memory in "Lookaside Memory Implementation" (1963).