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Television
a system for transmitting visual images and sound that are reproduced on screens, chiefly used to broadcast programs for entertainment, information, and education.
"the days before television" -
Radio
the transmission and reception of electromagnetic waves of radio frequency, especially those carrying sound messages.
"cellular phones are linked by radio rather than wires -
Newspaper
a printed publication (usually issued daily or weekly) consisting of folded unstapled sheets and containing news, feature articles, advertisements, and correspondence.
"all the newspapers carried the story" -
Computer
A computer is a machine or device that performs processes, calculations and operations based on instructions provided by a software or hardware program. It has the ability to accept data (input), process it, and then produce outputs. -
Cellphone
a phone with access to a cellular radio system so it can be used over a wide area, without a physical connection to a network; a mobile phone.