The first half of "PROTOTYPICAL" is a concise history of FPGA-based prototyping. We go back to the beginning, briefly introducing the debut of the Altera EP300 in 1984 and the Xilinx XC2064 in 1985. We then discuss the tipping point for what would become FPGA-based prototyping: the introduction of the Quickturn Systems RPM in May 1988. Strictly speaking, the RPM was an FPGA-based hardware emulator, but it set the stage for a radical change in chip...