In this year we learned a lot about hardware. A really useful component of the computer are it's ports. We use the ports to connect mouses, keyboards, speakers and many more to the computers. One of the most common port we use is the USB port. Another type of port we use is the PS2 port, the serial port and the parallel port. The parallel port allows us to make programs so we could connect them on the breadboard.These ports are really useful because they allow us to input commands into the computer.