73 I dunno... My laptop has a Magsafe port (for power), two Thunderbolt ports, a USB port, a headphone jack, another USB port, an HDMI port, and what appears to be an SD card slot.
That is it. If I want to connect it to, say, Ethernet (because there's no WiFi in my dorm, say), I have to use a fancy Thunderbolt -> Ethernet adapter.