Prime Computer’s decision to abandon the minisupercomputer market is a body blow to its partner Cydrome Inc in Milpitas, California, which laid off 59 of its 140 staff on Monday. Our man on the spot adds that Cydrome insiders are saying that if the company cannot cut a deal with another company similar to the one with Prime within 90 days, or find another bid source of sales in Japan perhaps, it will likely have to close its doors.