Intel Corp has joined forces with VideoServer Inc on a VideoServer device that will enable workgroups of as many as two dozen users of Intel’s ProShare videoconferencing system to confer in real time and exchange data. The device sells for $36,000, and dramatically extends the capability of ProShare since previously, only two users could be linked simultaneously, VideoServer, Lexington, Massachusetts noted. Videoconferencing is one of the high-end applications identified by Intel as worthy of energetic promotion because it eats up power and provides a reason for people buying machines that use its latest and highest-speed microprocessors.