2nd year ICT
A Hard drive is a device that stores all your data on a computer. An SSD is basically a smaller version of a hardrive that can be used in mobile phones or IPods. They are very fast and can process things almost immediately.
An optical drive is a device that reads the data off DVDs Blu-rays or video games. There is usually a tray that lets you put the disc on it and themn it is sent to the optical drive. A Nintendo Wii however does not have a tray.