Dell, the world’s third largest personal computer maker, is in talks to buy data storage company EMC, a person familiar with the matter said, in what could be one of the biggest technology deals ever.

Dell, the world’s third- largest personal computer maker, is in talks to buy data storage company EMC in what could be one of the biggest technology deals ever.

EMC, the maker of storage computers, facing the retirement of chief executive Joseph Tucci and activist pressure, is exploring strategic options that could include a full or partial sale, or a spinoff of VMware Inc.