Since 1969, Great Lakes Data Systems has been one of the leading point-of-sale system providers throughout the United States. Located in Southfield, Mich., it offers a range of product categories, such as grocery, fine dining, fast food and general retail. The firm provides an array of services, which include POS point-of-sale hardware\ software systems, installation, training and service\ support. It caters to various market sectors, including restaurant, retailers, grocery and general merchandising sectors. Great Lakes Data Systems provides products through its distributors, such as Casio, CRS, Samsung Electronics, Fujitsu and POSitouch.