A concept keyboard is a manual input device.
Instead of the usual 'A-Z' keys that you have on a traditional keyboard, a concept keyboard has pictures of items instead. For example when you place your order in a fast food shop, the till usually has a concept keyboard that has pictures of burgers, chips, fizzy drink etc. When the person presses the picture, the correct bill is worked out - no need for staff to remember prices.
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Click on this link: Concept Keyboard