Seyer, Martin D. Complete guide to RS232 and parallel connections a step by step approach to connecting computers, printers, terminals and modems Martin D. Seyer - New Jersey Prentice Hall 1988 - xvi+617p. appendix; index ISBN: 0-13-160201-2 Subjects--Topical Terms: ComputerComputer Input-output EquipmenComputer Interfaces Universal Decimal Class. No.: 681.327.1 / SEY