Your friend is mistaken. This serial port he is talking about is called "CGA" and closely resembles a serial port. However it still requires a graphics card and a monitor! You can convert a CGA signal ...

A popular means of reducing size and cost for any embedded design is to use a communication bus with fewer I/O pins. Moving from a parallel bus to a serial bus provides significant size and cost ...

Octal flash memory, or octal data transfer interface, utilizes eight data lines for input and output operations, resulting in significantly higher data transfer rates compared to serial, dual, and ...