Computer Automation Inc, once famous for its Naked Mini board-level computers, has little left apart from its automatic test equipment business and the royalties it gest from IBM Corp and others on a key patent used in the Micro Channel, and now the test equipment business is going. It has agreed to sell it to Protech Inc of San Antonio, Texas subject to completion of a private placeing of at least $1m in Protech securities. Under the agreement, Protech will acquire at least $1.7m of assets and some liabilities for 3.52m Protech shares.Computer Automation does systems for testing populated circuit boards, Protech does test and schematic generation systems for customers with a very large variety of boards that require testing, so the two lines are regarded as fully complementary.