Recognition vs. recall is one of the ways that computer interfaces have changed over time. Many years ago (back before graphical user interfaces were around), people would have to recall a lot more information. For example, there weren’t pull down menus with lists of choices. You had to remember what the choices were and type them in from memory. Worse you probably had to remember what the code was for the choice you wanted and type the code in. This is a recall memory task, and added to the difficulty of use of these early systems. One reason that “Windows” interfaces are easier is that they don’t require as much recall memory. They make more use of recognition memory.