The exclusive right to produce or reproduce (copy), to perform in public or to publish an original literary or artistic work, pursuant to a statute usually called the "Copyright Act", or some similar name.
Many countries have expanded the definition of a "literary work" to include computer programs or other electronically stored information.
The international symbol for a work for which copyright is claimed is the "c" inside of a circle as in ©.
See also Intellectual Property - Copyright.