IT Home News on December 21, the education company Switch Science recently launched a development board called "Naoto64", this development board is equipped with a 1-bit CPU running at a frequency of about 1Hz, the price is 2500 yen (IT Home Note: currently about 124 yuan), but the related products have been sold out at present.
▲ 图源 Switch Science 官网（下同）
It is reported that this development board has a USB-C interface for power supply, but the only purpose is to light up the three LED lights on the board, the official claim, this is "the world's top low-performance computer", IT home collates this development board parameter information as follows:
| project | specification |
| Universal registers | 1 person |
| Address space | 2 digits |
| Address bus width | 1 person |
| ROM capacity | 4 bytes |
| Instruction set | ADD、JMP |
| Program counters | 1 person |
| Computing power | Allows 1-bit addition to be calculated |
| CPU frequency | 1 Hz |
| Total number of ICs | 4 pcs |
In addition, the official published the circuit diagram of this development board in GitHub, and provided some instruction sets, which can be accessed by interested partners.
▲ 图源 GitHub（下同）