* [http://www.cpcwiki.eu/imgs/e/e7/UPD71051_USART.pdf µPD71051] USART for serial data communications (NC100/NC150)
* [http://www.cpcwiki.eu/imgs/d/de/UPD4711_RS232_Line_Driver.pdf µPD4711A] RS232 Line Driver (NC100/NC150)
* [http://www.cpcwiki.eu/imgs/0/00/NEC_43257_SRAM_32K.pdf µPD43257] 32K-WORD BY 8-BIT SRAM (NC100)
==Software==