The last version (4.4) of DSL came, I guess in 2008. Hence, in my article on lightweight Linux distros, I didn't include DSL. But, now I have to include it. DSL 4.11 is here and boy! What a lightweight OS it is! I couldn't imagine a fully functional distro with graphical desktop taking only 18-20 MB of RAM! Incredible!
From Damn Small Linux 4.11
To test, in virtualbox, I booted it up