In fact, the majority of the Debian installation process is installing the most basic packages that allow Debian to function.
Debian package management consists of several layers.
Please note that system and package updates should be performed with care.
Some packages even have configuration scripts that are run near the end of the package installation to help you initially configure the software.
A "package manager" is used to search for, install, remove, etc. Red Hat's package manager uses Note: The software in one package may need software from another package to work properly.
The lowest layers, most of which you won't want to touch, are made up of dpkg and associated programs.
On top of those layers are the Apt and apt-get tools as well as the newer aptitude tool.