Inspec includes bibliographic citations and indexed abstracts mainly from publications in the fields of physics, electrical engineering, electronics, and computer science. Other subjects covered are communications, control engineering, information technology, manufacturing and mechanical engineering, operations research, material science, oceanography, engineering mathematics, nuclear engineering, environmental science, geophysics, nanotechnology, biomedical technology and biophysics. The database indexes journal articles, conference proceedings, reports, disserations and also limited coverage of patents.