Name the four different type of keyboards and give a small description for each

QWERTY Names because of the first line of key is qwerty Ergonomic A keyboard designed to prevent RSI( Repetetive strain injury) Concept keyboard Keys are printed onto a thin sheet of plastic Normally used in pubic places such as self service restaurants, ATMs and in appliances such as washing machines and microwaves Easier to clean Easier to use since they keys can be different shapes, color, sizes Braille keyboard A keyboard used by blind people