The document outlines the timeline of instructional design and technology from the 1910s to the current era. It describes how instructional methods evolved from early educational films without sound in the 1910s-1920s to incorporating audio, motion pictures, radio, and television in the 1920s-1950s. Computer-aided instruction became popular in the 1960s-1970s, and personal computers became more widely used in libraries, schools, and homes in the 1980s-1990s with the rise of the internet. Today's technologies allow for unlimited access to instruction through learning management systems on various mobile devices.