Like mentioned above, these expansion ports are used to add various hardware components to the computer, like a new video card, network cardmodem, sound card, etc.
Dị ka ekwupuru n'elu, a na-eji ọdụ ụgbọ mmiri ndị a na-agbakwunye komputa, dị ka kaadị vidiyo ọhụrụ, kaadị netwọk, modem, kaadị ụda, wdg