When comparing Doudou vs SliTaz, the Slant community recommends SliTaz for most people. In the question“What are the best Linux distributions for desktops?” SliTaz is ranked 27th while Doudou is ranked 80th. The most important reason people chose SliTaz is:
The core liveCD is only 35 megabytes. The boot-from-internet option fits on a floppy.
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Pros
Pro Concise "all in one" kid experience
From the pre installed apps to the interface everything about this distribution is dead simple. No necessary set up, just boot and go.
Pro Installable live cd
DouDouLinux comes as a live cd, meaning this distribution can be used on any computer not matter the OS in Live CD mode as well as installed fully onto the device depending on the hardware support.
Pro One of the smallest distributions with desktop GUI
The core liveCD is only 35 megabytes. The boot-from-internet option fits on a floppy.
Pro Very fast
Pro Can add desktop effects
SliTaz has a feature called "Desktop Effects" which can add shadow or fade effects to windows.
Pro Very customizable
SliTaz is very customizable. You can programatically edit and change anything you want on how the OS looks or behaves.
Cons
Con Based on an old distro
DouDou Linux is based on Debian 5, which is pretty old. So this means the software found in the distribution will be old. This also means the hardware support will be lacking compared to newer based distros. So for those that do want to install it would be a good idea to make sure the hardware is supported by Debian 5 and DouDou Linux.
Con Install instructions are in French
When first booting SliTaz from a USB or from a Live CD, the installation instructions are in French.
Con Not much variety as to available applications
SliTaz does not have as many applications in its repositories as the bigger distros such as Ubuntu.