Means of communication
classe de coisas
A general class of devices and systems for transmitting messages.
Que tipo é
- Electrical telegraph — inclui. A means of sending messages.
- Telephone — inclui. A means of transmitting the voice.
- Radio — inclui. A means of wireless communication.
- Internet — inclui. The Internet is a means of communication.
- Optical telegraph — inclui. A means of communication.
Coisas semelhantes da mesma época e campo
- Smartphone (1994) — A mobile phone with the functions of a computer. This is a typical modern smartphone as a class, not a specific model.
- Loudspeaker (1925) — Turns an electrical signal into sound: a coil in a magnetic field moves a diaphragm.
- Antena (1888) — Emits and receives radio waves.
- Microphone (1876) — Turns sound vibrations into an electrical signal.
- Sino (2000 a.C.) — A cast ringing vessel.
- Typewriter (1868) — Mechanical printing of letters with keys (Sholes and Glidden).
O que tem em comum com outras coisas
- Means of communication e shaduf: o que têm em comum — uma ligação em 6 passos
- Means of communication e saw: o que têm em comum — uma ligação em 6 passos
- Means of communication e radar: o que têm em comum — uma ligação em 3 passos