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telephone

(Encyclopedia)CE5 Hand telephone telephone, device for communicating sound, especially speech, usually by means of wires in an electric circuit. The telephones now in general use evolved from the device invente...

cellular telephone

(Encyclopedia)cellular telephone or cellular radio, telecommunications system in which a portable or mobile radio transmitter and receiver, or “cellphone,” is linked via microwave radio frequencies to base tran...

telemarketing

(Encyclopedia)telemarketing, the practice of selling goods or services to customers by means of the telephone or of surveying consumer preferences in telephone conversations. Telemarketing firms use trained staff a...

Fleming, Sir John Ambrose

(Encyclopedia)Fleming, Sir John Ambrose, 1849–1945, English electrical engineer. He was a leader in the development of electric lighting, the telephone, and wireless telegraphy in England and the inventor of a th...

Federal Communications Commission

(Encyclopedia)Federal Communications Commission (FCC), independent executive agency of the U.S. government established in 1934 to regulate interstate and foreign communications in the public interest. The FCC is co...

data communications

(Encyclopedia)data communications, application of telecommunications technology to the problem of transmitting data, especially to, from, or between computers. In popular usage, it is said that data communications ...

cellphone

(Encyclopedia)cellphone: see cellular telephone. ...

smartphone

(Encyclopedia)smartphone: see cellular telephone. ...

Rural Electrification Administration

(Encyclopedia)Rural Electrification Administration (REA), former agency of the U.S. Dept. of Agriculture charged with administering loan programs for electrification and telephone service in rural areas. The REA wa...

modem

(Encyclopedia)modem [modulator/demodulator], an external device or internal electronic circuitry used to transmit and receive digital data over a communications line normally used for analog signals. A modem attach...