The term 'THEY MAY BE CLASSIFIED OR PERSONAL' can be summarized by the three-letter acronym ADS, which stands for 'Automated Data Systems.' Automated Data Systems are computer systems that store and process data, such as personal information or classified documents. They are used to store, manage, and analyze large amounts of data in order to make informed decisions. Automated Data Systems are used in a variety of industries, including finance, healthcare, and government.