Tech Time Warp of the Week: The Apple Lisa, 1983 | Wired Enterprise | Wired.com: What we can say is that Apple took these ideas to the next level. All six of Lisa’s software tools — LisaWrite, LisaDraw, LisaGraph, LisaCalc, LisaProject, LisaList — were integrated together, so you only had to learn one set of skills that translated from one program to the next. That made Lisa much easier to use than previous systems. One of its signature functions was “Undo Last Change,” which BYTE called a “tremendous security blanket that enables you to experiment and work without worrying about making an irrevocable mistake.”