The article discusses eight lesser-known 8-bit microprocessor designs from the 1970s and early 1980s, including the TMX-1795, Mostek 5065, Intel 8085, Signetics 2650, RCA 1802, Chip Letter, Intersil 6100, and TMS 9900. These designs, although not commercially successful, offer insights into the evolution of microprocessors and the challenges faced by their creators during this era.