NEAC series 2200 model 575

The NEAC Series 2200 was marketed in April 1971, and these models were marketed in October of the same year as high-end versions of the Model 75, 175 and 275, which were the online family of the series. They had online performance superior to the above 3 models. At the time, there was a marked shift from batch processing to online systems, and the Model 375 and 575 were large computers developed in response to these needs, for tasks such as online/real-time systems, database systems and time sharing systems.