Computer cookies, also known as HTTP cookies, internet cookies, or browser cookies, are small blocks of data created by a web server while a user is browsing a website and placed on the users computer or other device by the users web browser. Cookies are used to store stateful information on the users device or to track the users browsing activity. They enable web servers to remember users, their logins, shopping carts, and more. Cookies can also be used to save information that the user previously entered into form fields, such as names, addresses, passwords, and payment card numbers.

There are different types of computer cookies, each tasked with a responsibility to track certain aspects of the user or their online behavior. Some cookies are necessary for websites to load properly, whereas others are purely for marketing purposes. Cookies can help a website arrange and display content to match the users preferred settings.

Cookies are generally safe to accept from trusted websites. They dont contain any identifiable information and are mostly used to ensure a smooth browsing experience by remembering the users preferences and authenticating their identity. However, some cookies can be used to track users without their consent by cybercriminals.

In summary, computer cookies are small blocks of data created by a web server while a user is browsing a website and placed on the users computer or other device by the users web browser. They are used to store stateful information on the users device or to track the users browsing activity. Cookies can help web servers remember users, their logins, shopping carts, and more. They are generally safe to accept from trusted websites, but some cookies can be used to track users without their consent by cybercriminals.