DRAM - How can I find how much memory I already have installed in my computer?

• Windows users - Right mouse-click on the "My Computer" icon and select "Properties." The total memory is calculated and displayed under the "General" tab in the system properties window.

• Mac users - Select "About This Mac" or "About This Computer" from the Apple menu in the upper left corner of your desktop. This will provide information about your Mac's total memory (built-in memory plus DIMMs or SIMMs installed).