The venerable X86 architecture is by far the most popular processor family used to build Single Board Computers. Intel has leveraged their dominance on the desktop to allow them to continually innovate while improving price/performance.
In fact, the X86 processor architecture evolves so quickly that it is hard to buy a Single board Computer that has a life span of more that a few years. Some of the processors in the family include:
- 8086
- 80286
- 80386
- 80486
- Pentium