A cookie is a small data file which, if you give consent, is stored on your browser or your computer hardware. Wikipedia’s lengthy definition [https://en.wikipedia.org/wiki/HTTP_cookie] starts by saying that a cookie is:
“… a small piece of data stored on the user’s computer by the web browser while browsing a website. Cookies were designed to be a reliable mechanism for websites to remember stateful information (such as items added in the shopping cart in an online store) or to record the user’s browsing activity (including clicking particular buttons, logging in, or recording which pages were visited in the past). They can also be used to remember pieces of information that the user previously entered into form fields.”
You can browse our website without enabling cookies and you can block them via your browser, though this might block access to some areas or functions.