Computervision, of Bedford, Massachusetts, now a division of Prime Computer Inc, has announced two additions to its Professional Series systems. The Professional PCB Designer and Professional Logic Designer add to Computervision’s new desktop product line, announced last month, with electronics design tools for schematic capture, simulation, printed circuit board design and documentation. Professional Series CADDStation systems feature prepackaged subsets of the CADDS software running on the CADDStation model 33 – Sun-3/60. The products come in stand alone and network configurations. The stand-alone Professional Logic Designer with colour monitor is $41,900 and a similarly configured Professional PCB Designer is $46,900. Professional PCB Designer is a Unix-based system that includes tools for schematic capture, schematic rule checking, automatic and interactive device placement, automatic routing and documentation. The package supports dual-sided PCB design as well as design with blind and buried vias, both essential when using surface-mount components. Multilayer routing algorithms and algorithms that provide for dynamic via and trace repositioning are included.