My computer doesn't appear to have a serial port
Moderators:R!C0, JonMan, RickS
Most ECUs connect to the serial port (rs-232). This is a 9-pin DIN style connector. Other ECUs connect to the computer by means of a USB cable.
Many modern desktops and laptops do not have serial ports as standard. If this is the case, then it is possible to expand your computer with a USB to Serial adapter or a PCI card. On laptops, there is often a PCMCIA connector. Serial adapters exist that can plug into the PCMCIA slot. In our experience, the PCMCIA adapters tend to be more reliable than the USB ones.
Many modern desktops and laptops do not have serial ports as standard. If this is the case, then it is possible to expand your computer with a USB to Serial adapter or a PCI card. On laptops, there is often a PCMCIA connector. Serial adapters exist that can plug into the PCMCIA slot. In our experience, the PCMCIA adapters tend to be more reliable than the USB ones.