Date: 04/12/07 (Computer Help)    Keywords: no keywords

Can anyone explain to me what is RAM and what role does it play in the computer? I run on 512mb of RAM and when i check sometimes, it shows that i only have 70-100mb of RAM free. What does this mean? How do i free up RAM permanently?

Thank you

Source: http://community.livejournal.com/computer_help/768109.html