". ? Just because an application responds to events does not mean it is "event driven" . Event driven means it spends much of its time waiting for an event and then takes action if and when an event occurs. Contrast this with some programs that do not respond to events at all, but simply do their job and terminate. For example, an operating system command to display the current time. It displays the time and is done; it does not wait for events. For more information, see: Event-driven_programming Implementations The pattern was first described in 1979 by Trygve Reenskaug, then working on Smalltalk at Xerox research labs. 40 Model Search This original implementation inspired many other GUI frameworks such as: The NeXTSTEP and OPENSTEP development environments encourage the use of MVC. Cocoa, based on these technologies, also uses MVC. "

" The term was coined in 1979 by Janice Dickinson, and gained currency by analogy with Andy Warhol's "superstars" of the 1960s, and, like "superstardom", it has been conflated to include almost anyone who finds steady access to work, uncommon in the highly volatile fashion industry. While the term gained steam in the 1980s, a number of models had become famous in their own right as far back as Dorian Leigh in the late 1940s. Amongst the first models whose name and face were familiar to those outside the fashion industry include Suzy Parker, a model in the 1950s, and Cheryl Tiegs in the 1960s. Others claim that Janice Dickinson has the right to the title of first supermodel since she is credited with the creation of the term. While still others claim Lisa Fonssagrives to be the world's first supermodel and none have surpassed her over 200 covers of Vogue alone. She was in every fashion magazine during the 1930s, 1940s and 1950s from Town and Country, Life, Vogue, the original Vanity Fair to the cover of Time. The high point of the supermodel era was in the 1980s and 1990s, with some of the most famous being "The Trinity" of Linda Evangelista, Naomi Campbell, and Christy Turlington. Cover Girl Model Search Also in this era, models like Paulina Porizkova paved the way for an influx Eastern European models. It was at this time that Cindy Crawford successfully leveraged her modelling fame into hosting her own television show, MTV's House of Style, creating and promoting many exercise video tapes, and posing in Playboy (she was the first supermodel/model to do all of these). "