One approach to handle this scenario derives from information processing models developed by cognitive scientists. They compare human thinking to how the computer works, with its components: input, processing, output, and memory storage. The diagram below illustrates the key ideas of the information processing model. The behaviourists are interested in the bond between the input (solve the linear equation) and the output (the solution), without paying much attention to the internal cognitive processes involved (shown within the dotted box). However, the cognitive scientists study how the processes within the box work.