What is the best linux for my machine

What is the best linux for my machine?

It could just be your desktop environment thats slowing you down. You may want to install XFCE and run that instead of KDE. As for other distro's these two are a sure thing:

DSL- Damn Small Linux! :) It's great and should be fast for you. http://www.damnsmalllinux.org/



Or you could try out Knoppix if you have a cd-rom http://www.knoppix.org

Requirements to run Knoppix:

* Intel-compatible processor (i486 or later)
* 32 MB of RAM for text mode, at least 96 MB for graphics mode with KDE (at least 128 MB of RAM is recommended to use the various office products)
* Bootable CD-ROM drive, or a boot floppy and standard CD-ROM (IDE/ATAPI or SCSI)