How does RAM function?
by 
SCBofTennessee
ANSWERS: 2
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A good article answers this better than I can on this form, the website is: http://computer.howstuffworks.com/ram.htm In a nutshell, RAM is defined as Random Access Memory, which means that any byte or section of the memory can be accessed at any given time, verus say a tape drive which is sequential access memory since it must scroll to arrive at a section of the tape. RAM functions using transistors. Currently the most common RAM is SDRAM or DDR RAM, DDR Ram is based off of SDRAM, SDRAM stands for Synchronous dynamic random access memory. This RAM uses transistors and capacitors. The capacitors are set to a voltage if they are to be a one, or they are cleared to no voltage if there is to be a 0. Since capacitors leak slowly, SDRAM must read and write every bit very often, which is called refreshing the RAM, this either fills the capacitor back to full, or keeps it at zero. For more detail, refer to the article at the link above, it explains RAM very well.
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