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a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection. -
Is a digital electronic machine that can be programmed to carry out sequences of arithmetic or logical operations automatically. -
A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly. -
Is the technology of signaling and communicating using radio waves. -
Is a telecommunication medium for transmitting moving images and sound. -
They use a touch-sensitive screen so you can type and navigate quickly. -
Is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area.