therefore this arrangement is likely to be different for different devices the data storage 106 may contain images or movies and the microprocessor 103 may show those images or movies on the electronic display 102 according to the capabilities of the software instruction set the training aid can be configured to be useful with whatever sighting mechanism is used by the device such as an iron sight telescopic sight or reflex sight among others iron sights exclude the use of optics and typically use a pair of simple component sights a rear sight consisting of some form of notch or aperture and a front sight constructed from a bead post or slot for an iron sight the electronic display 102 can be positioned such that the image is in view for the trainee beyond these iron sight components a telescopic sight uses lenses and mirrors to provide telescopic power and reflex sights use lenses and mirrors to reflect reticle images onto a combining glass for superimposition on the target for these optical sights the electronic display 102 can be positioned such that the image is seen through the optics of the sight fig4 a 4b 4c in another embodiment of the invention illustrated in fig4 a 4b and 4c as the side front and perspective views respectively additional components are added to the basic configuration to provide additional functionality to the trainee these optional components may be added individually to the basic training aid shown.