Computer programs and data stored in hardware - typically in read-only memory (ROM) or programmable read-only memory (PROM) - such that the programs and data cannot be dynamically written or modified during execution of the programs.
Sources:
CNSSI 4009-2015 from IETF RFC 4949 Ver 2
NIST SP 1800-10B under Firmware from CNSSI 4009-2015
NIST SP 800-37 Rev. 2 from CNSSI 4009-2015
NIST SP 800-53A Rev. 5 from CNSSI 4009-2015

  Computer programs and associated data that may be dynamically written or modified during execution.
Sources:
NIST SP 800-37 Rev. 2 under software from CNSSI 4009-2015
NIST SP 800-53 Rev. 5 under software from CNSSI 4009-2015
NIST SP 800-53A Rev. 5 under software from CNSSI 4009-2015

  The material physical components of a system. See software and firmware.
Sources:
NIST SP 800-172 under hardware
NIST SP 800-172A under hardware
NIST SP 800-37 Rev. 2 under hardware from CNSSI 4009-2015
NIST SP 800-53 Rev. 5 under hardware from CNSSI 4009-2015
NIST SP 800-53A Rev. 5 under hardware from CNSSI 4009-2015
NIST SP 800-171 Rev. 2 under hardware from CNSSI 4009

  The material physical components of an information system. See firmware and software.
Sources:
CNSSI 4009-2015 under hardware from IETF RFC 4949 Ver 2

  Computer programs (which are stored in and executed by computer hardware) and associated data (which also is stored in the hardware) that may be dynamically written or modified during execution.
Sources:
CNSSI 4009-2015 under software from IETF RFC 4949 Ver 2

  Software that is included in read-only memory (ROM).
Sources:
NIST SP 800-147 under Firmware
NIST SP 800-147B under Firmware

  Computer programs and data stored in hardware - typically in read-only memory (ROM) or programmable read-only memory (PROM) - such that the programs and data cannot be dynamically written or modified during execution of the programs. See hardware and software.
Sources:
NIST SP 800-53 Rev. 5 from CNSSI 4009-2015
NIST SP 800-171 Rev. 2 from CNSSI 4009

  Computer programs and data stored in hardware—typically in read-only memory (ROM) or programmable read-only memory (PROM)—such that programs and data cannot be dynamically written or modified during execution of the programs. See hardware and software.
Sources:
NIST SP 800-172
NIST SP 800-172A

  See hardware and software.
Sources:
NIST SP 800-53A Rev. 5

  Software program or set of instructions programmed on the flash ROM of a hardware device. It provides the necessary instructions for how the device communicates with the other computer hardware.
Sources:
NISTIR 8183 under Firmware from TechTerms.com
NISTIR 8183 Rev. 1 under Firmware from TechTerms.com
NISTIR 8183A Vol. 1 under Firmware from TechTerms.com
NISTIR 8183A Vol. 2 under Firmware from TechTerms.com
NISTIR 8183A Vol. 3 under Firmware from TechTerms.com