Thyroid Cancer Symptoms: Swollen Lymph Nodes. Gland swelling commonly refers to enlargement of the lymph glands, also known as lymph nodes. Lymph nodes are small rounded or bean-shaped masses of lymphatic tissue surrounded by a capsule of connective tissue.
DRM includes technologies that control the use, modification, and distribution of copyrighted works, as well as systems within devices that enforce these policies. The term is also sometimes referred to as  copy protection , copy prevention, and copy control, although the correctness of doing so is disputed.ne of the oldest and least complicated DRM protection methods for the computer games is a CD Key. CD Keys are a series of numbers and letters included with copies of the game, usually printed somewhere on the CD or the software package.
Copyright is a legal right created by the law of a country that grants the creator of an original work exclusive rights for its use and distribution. This is usually only for a limited time. The exclusive rights are not absolute but limited by limitations and exceptions to copyright law, including fair use. A major limitation on copyright is that copyright protects only the original expression of ideas, and not the underlying ideas themselves.[1][2]