Cookies are files or pieces of textual information that may be stored on your computing device when you visit a website. A cookie will usually contain the name of the website from which the cookie has come from and the "lifetime" of the cookie (i.e. how long it will remain on your device).
There are two types of cookies that may be used - "session cookies" and "persistent cookies". A session cookie is temporary cookie that remains on your device only until you leave the website. A persistent cookie remains on your device for a period of time after you have left the website. how long the cookie remains on your device will depend on the duration or "lifetime" set in the specific cookie and your browser settings.
Most internet browsers are initially set up to automatically accept cookies. You can change the settings to block cookies or to alert you when cookies are being sent to your device. There are a number of ways to manage cookies depending on your browser and computing device. Please refer to your browser help instructions to learn more about how to adjust or modify your browser settings or to delete cookies from your computing device.