This paper deals with a Computer aided design system for circuit layout and presents a mathematical model of circuit layout design and its implementation on IBMPC/XT.
The regression equations of expiratory and inspiratory resistances were built with multiple stepwise regression analysis on the IBMPC/XT computer with age, height and FVC as independent variables.
In this paper, a scheme about background communication between one microcomputer and others by IBM-PC/XT and XENIX is introduced, The softwares and the main points of technology are described.