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From GHN

A 1973 photo of Ellen Weaver developing instrumentation to be used in satellites for ocean monitoring- Image by The National Aeronatics and Space Administration

Hardware and software used for different types of communication.

Subcategories

• Auditory displays - the use of sound to communicate information from a computer to a user
• Codecs - short for coder-decoder, a device or program used to encode or decode a digital signal
• Modems - short for modulator-demodulater, a device that modulates an analog carrier signal to carry digital information and demodulates the carrier signal to decode information
• Optical communication equipment - any device which transmits information through the use of light
• Radio communication equipment - any device which transmits information using radio waves
• Receivers - a device which converts a radio signal to a usable form through demodulation and decoding
• Repeaters - an electronic device that receives a signal and retransmits it at a higher level or in another form
• Speech codecs - the application of data compression of digital audio signals containing speech
• TV equipment - any device that transmits, receives, or displays television signals
• Telephone equipment - any device that transmits, receives or voices telephone signals
• Transceivers - a transmitter and receiver which are combined and share common circuitry
• Transmitters - an electronic device that uses an antennas to create and transmit radio waves
• Transponders - short for transmission-responder, either a digital device that receives and transmits a signal on a different frequency, or a device which generates a reply signal upon electronic interrogation
• Video codecs - a device or program which codes and decodes visual information
• Video equipment - any device which transmits, receives, or displays visual signals
• Vocoders - short for voice-encoder, a device which encodes human speech to transmit it electronically and which is then decoded by another device