Installing needed extensions

Most of the power of TYPO3 comes from extensions. In fact, much of the system you have just installed is powered by extensions — these come packaged with the source, and are called system extensions, or simply sysext. You can find them under the typo3/sysext folder. These extensions have been deemed necessary for most installations, and many come preloaded by default. There are more extensions available through the TYPO3 Extension Repository (TER),&; and they can be installed as local extensions, and will reside under the typo3conf/ext folder. You can get a complete list at http://typo3.org/extensions.

As we will be dealing a lot with multimedia, we should install the Digital Asset Manager (DAM) extension. Its extension key is dam. While you can run a website without it perfectly well, a lot of the information provided in subsequent chapters will assume that you have a lot of media objects, and need an efficient way of organizing them. DAM is designed to do just that.