Sensor processing, mission processing, mission computing, radio frequency (RF) subsystems and components, namely, digital data and signal processing equipment and safety-certifiable avionics subsystems equipment comprised of computers, single-board computers, multi-computers, imaging computers, rackmount digital data processing computer servers, motherboards, system boards, daughtercards in the nature of expansion electronic circuit cards, system host boards and carrier boards in the nature of single-board computers, digital signal processors, interconnect modules in the nature of network routers, computer memory modules, computer chassis, input/output interface modules in the nature of computer network interface devices, radio frequency (RF), millimeter-wave and microwave assemblies, including signal tuners, frequency converters, radio transceivers, and switch filters for radio interference suppression, radio frequency (RF) and microwave components, including power amplifiers and audio processing limiters, high frequency switches, audio oscillators, and audio equalizers, solid-state computer disk drives, GPS receiver modules, digital radio frequency memory modules, hardware accelerators in the nature of a computer accelerator board for general purpose processing, graphics processing unit-based hardware video graphics accelerators, and processor circuit boards to perform real-time image and signal processing for use in the aerospace, military defense, homeland security, intelligence, cybersecurity, satellite communications, automotive, transportation and industrial automation fields; Downloadable computer software and computer hardware for data acquisition, conversion, digitization, encryption, processing, storage and dissemination in the aerospace, military defense, homeland security, intelligence, cybersecurity, satellite communications, automotive, transportation and industrial automation fields; Downloadable computer software and firmware for operating system programs, namely, accelerating development of parallel sensor applications, integrated development environment software for development of software applications, compilers, trace analysis tools, computer monitoring and process control utilities, and diagnostic software; digital data and signal processing equipment and safety-certifiable avionics subsystems equipment, namely, downloadable digital data processing software for increasing the computational performance of image and signal processing applications, and downloadable interprocessor communications software for communicating within, between, and among digital signal data processing equipment for use in the aerospace, military defense, homeland security, intelligence, cybersecurity, satellite communications, automotive, transportation and industrial automation fields; Instructional books and manuals distributed and sold as a unit with the foregoing goods