CPI COMPUTER PRODUCTS

ELECTRICAL POWER CONVERTERS, USING POWER TRANSFORMERS TO CHANGE EITHER ALTERNATING CURRENT OR DIRECT CURRENT INTO A MORE USEFUL FORM OF DIRECT CURRENT POWER, FOR USE IN INDUSTRY; ELECTRONIC TEST, MEASUREMENT AND CONTROL EQUIPMENT, NAMELY, INTERFACE HARDWARE FOR USE WITH COMPUTERS, WHICH ALLOWS THE COMPUTER TO SENSE CERTAIN CONDITIONS AND THEN TO OPERATE EQUIPMENT TO CONTROL THE CONDITION