Book Southwest Airlines tickets from Los Angeles, California (LAX) to the Columbus, Ohio (CMH). Southwest has the best deals and the lowest fares on flights, hotels and car rentals. Skip top navigation
Input device. A common computer input device, a keyboard. A user presses a key which transfers information to a computer. In computing, an input device is a peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, digital cameras and joysticks.
The main purpose is to grab people's attention. Once it has achieved that purpose, its next purpose is usually to provide people with information. Sometimes posters are designed to make people curious about something, and encourage them to seek out further information of their own accord. TouchScreen Â· 7 years ago.