The Gould Model K105-D Logic Analyzer (Figure 1-1) is a precision, high- performance test and development instrument that monitors input logic signals generated by the user’s external microprocessor-based equipment· The K105-D accepts data inputs from 32 (or optional 64) Main Input channels and 8 (or optional 16) High-Speed Input channels. The Main data inputs are driven by 8 externa! clocks; High-Speed data inputs are driven by 2 externa! clocks. All inputs are applied via pod/probe circuits that interface to the user’s equ i pment. A versatile clock scheme and a variety of data input options allow the user to easily and rapidly examine and record both addresses and data of very fast, 8-bit and 16-bit microprocessors.