Website br Facebook br Twitter br br Computer Ports br Computer ports or Motherboard IO interfaces are used to connect external devices to the computer. These interfaces are mostly located on the back side of the motherboard. Number of Interfaces depends on the size of Motherboard and technology used. br br br PS2 Din Connector br br PS2 6 pin din connector br Green for mouse br Purple for keyboard br br USB Interface br br USB 1.0 1.5 Mbps br USB 2.0 480 Mbps br USB 3.0 5 Gbps br br Serial Ports br br Serial port used to connect the modem, Monitor, mouse, printer etc. It is 09 pin connector. RS 232 standard. Older interface. br br Parallel Ports br br Send several bits at a time. Used for printers. Older interface. br br NIC Network Interface Card br br RJ 45 connector is used to connect the Internet. br br eSATA external SATA br br It is just like USB or Firewire port. It is used to connect an external SATA drive. br br VGA Port (Video Graphics Adapter) br br Use to connect the monitor. It is 15 pin connector normally in blue color. br br DVI Digital Visual Interface br br New technology than VGA port. It produces high-quality pictures.