Nonetheless, I was always jealous of my friends who had IBM PC's. The 5150 was released on 12 August 1981 and ushered in a new era of computing. Originally intended as a stop-gap computer to allow IBM to really focus on a PC for the market, the 5150 was developed in less than a year under the direction of a team of twelve talented engineers. What IBM, or really anybody else, didn't anticipate was how that expedited development schedule would change the world. IBM, in an effort to get this thing out, allowed the engineers to work outside of the normal IBM process. In doing so, IBM allowed the development team to use off-the-shelf components, including Microsoft's new operating system MSDOS.