What’s old is new again ... began to see more traction in the personal-computer market. But Dell seems cool again in the artificial-intelligence era, and investors are taking notice.

Dell Technologies shares have been on a roll—the 40-year-old PC and enterprise hardware ... Dell is getting ready to roll out AI-powered personal computers later this year.

Founded by Michael Dell in his dorm room at University of Texas at Austin in 1984, the pioneering personal computer company made its mark by selling affordable PCs directly to consumers.