We are a leading Point-of-Sale system provider throughout Michigan - assisting successful Grocers, Retailers and Restaurateurs. For over 50 years, Great Lakes Data Systems, Inc. has been providing outstanding point of sale system service and support to all of our customers. We pride ourselves on making your business run smoothly by providing top notch hardware, software, training and support - so you can focus other things that make your business a success. Putting people first, we are there every step of the way to promote employee productivity, implement inventory control and move you towards overall operational success.