Midac

MIDAC is an acronym created in 1981 by a Sydney-based business, Combined Resources Computing (CRC). It stands for Microprocessor Intelligent Data Acquisition and Control. CRC was established in order to complete several building automation projects commenced by R-Tec. MIDAC is an acronym created in 1981 by a Sydney-based business, Combined Resources Computing (CRC). It stands for Microprocessor Intelligent Data Acquisition and Control. CRC was established in order to complete several building automation projects commenced by R-Tec. R-Tec was an Australian development company based in Sydney that focussed on designing innovative computerised building automation products. The proprietors formed R-Tec in the late 1970s after leaving Johnson Controls. The early R-Tec automation systems used TTL logic with control parameters stored in dynamic memory. The early computerised building automation systems or BAS monitored alarms and conditions relating to building services including air conditioning, water and power, etc. They also controlled plant by starting and stopping pumps and fans according to time and other interlock conditions.