...I own old computers so When I do the playing around with Rams I don't see a diffrence so I want to hear from all of you...
All my PC's are "old". RAM configuration is not important. Total amount of RAM is important. "Faster" RAM is not faster, RAM only operates at the fastest speed allowed by the Front Side Bus. PC133 memory will operate at PC100 speed in a 100MHz FSB, and will operate at PC66 speed in a 66MHz FSB. Not all PC133 memory modules are able to operate at 133, 100, and 66MHz.
Win98 - 64MB is more than adequate. With any more, you will notice very little difference.
Win2k - requires at least 128MB, more is noticeably faster. Any less, computer is very slow.
WinXP - 160MB works quite well, but, more is better.
If any of the main memory is shared by the video, that must be accounted for in the totals.