In a move that makes it sound as if the firm wants to stop work, sit back and just enjoy the royalties on the patent IBM uses in its PS/2 machines, Irvine, California-based Computer Automation Inc said last week that it had a letter of intent to sell its automatic test equipment business to Technology Marketing Inc, a neighbour in Irvine that manufactures functional memory testers, systems for certifying magnetic tape quality and memory board and memory device automatic testers. The purchase price is set at about $4m cash. The business to be sold designs and sells automatic test systems for circuit boards and accounted for 60% or so of the company’s $17.2m business in the year to June 30. The former mass-market minimaker wants to concentrate on its technology portfolio, its traditional OEM business, and on its Talon Technologies subsidiary.