Wheezy installing software
Debian provides the apt-get system which manages pre-built applications. Before packages can be installed, the list of package versions and locations needs to be updated. This assumes the device has a valid network connection to the internet.
Debian Wheezy has been moved to archive status, this requires an update of /etc/apt/sources.list to contain only the following lines:
deb http://archive.debian.org/debian wheezy main non-free deb-src http://archive.debian.org/debian wheezy main non-free
For example, lets say you wanted to install openjdk for Java support. You can use the apt-cache command to search the local cache of Debian's packages.
<user>@<hostname>:~# apt-cache search openjdk icedtea-6-jre-cacao - Alternative JVM for OpenJDK, using Cacao icedtea6-plugin - web browser plugin based on OpenJDK and IcedTea to execute Java applets openjdk-6-dbg - Java runtime based on OpenJDK (debugging symbols) openjdk-6-demo - Java runtime based on OpenJDK (demos and examples) openjdk-6-doc - OpenJDK Development Kit (JDK) documentation openjdk-6-jdk - OpenJDK Development Kit (JDK) openjdk-6-jre-headless - OpenJDK Java runtime, using Hotspot Zero (headless) openjdk-6-jre-lib - OpenJDK Java runtime (architecture independent libraries) openjdk-6-jre-zero - Alternative JVM for OpenJDK, using Zero/Shark openjdk-6-jre - OpenJDK Java runtime, using Hotspot Zero openjdk-6-source - OpenJDK Development Kit (JDK) source files openoffice.org - office productivity suite freemind - Java Program for creating and viewing Mindmaps default-jdk-doc - Standard Java or Java compatible Development Kit (documentation) default-jdk - Standard Java or Java compatible Development Kit default-jre-headless - Standard Java or Java compatible Runtime (headless) default-jre - Standard Java or Java compatible Runtime
In this case you will likely want openjdk-6-jre to provide a runtime environment, and possibly openjdk-6-jdk to provide a development environment. You can often find the names of packages from Debian's wiki or from just searching on google as well.
Once you have the package name you can use apt-get to install the package and any dependencies. This assumes you have a network connection to the internet.
apt-get install openjdk-6-jre # You can also chain packages to be installed apt-get install openjdk-6-jre nano vim mplayer
For more information on using apt-get refer to Debian's documentation here.