Any equipment or interconnected system or subsystem of equipment that processes, transmits, receives, or interchanges data or information.
Adapted from: CNSSI 4009, NIST SP 800-53 rev. 4, based on 40 U.S.C. sec. 1401.
Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies (https://niccs.us-cert.gov/glossary) as of 11 November 2015, Global Standards