The embedded processor devices were considered a special risk for three reasons. First, embedded processor devices far outnumbered traditional computing systems. Nearly $10 billion worth of microprocessors were manufactured and sold between 1991 and 1998, and of that number, only 10% were installed in traditional computers (Figure 105-1). The remaining 90% went into embedded processor devices. Second, since the processor and its application software were embedded, it was not obvious which devices had processors and might be affected by the Y2K bug. Finally, embedded processor devices that did have the Y2K bug could not simply be reprogrammed as traditional computers could. A device had to have its hardware changed or it had to be replaced. Typical embedded processor devices include the following: