High Quality Content by WIKIPEDIA articles! CDS/ISIS is a software package for generalised Information Storage and Retrieval systems developed, maintained and disseminated by UNESCO. It was first released in 1985 and since then over 20,000 licences have been issued by UNESCO and a worldwide network of distributors. It is particularly suited to bibliographical applications and is used for the catalogues of many small and medium-sized libraries. Versions have been produced in Arabic, Chinese, English, French, German, Portuguese, Russian and Spanish amongst other languages. UNESCO makes the software available free for non-commercial purposes, though distributors are allowed to charge for their expenses.