How to know how much "computer memory" is on your PC?

It's easy to find out just how much memory your computer has.

• Find the My Computer/Computer icon (on your desktop or in the Start Menu List.
• Hover your mouse over the My Computer (in Windows 98, XP or Vista) or Computer (in Windows 7)
• When the function menu appears, left click on Properties. 
• The details of your computer will now appear, including Operating System, Hardware manufacturer, the memory (RAM-Random Access Memory) and other helpful details. 

Most of us agree that the quickest and most effective way to improve the overall performance of computers is to increase the amount of memory it has... But you can't install just any memory, it has to be compatible so if you aren't sure - check with a technician you trust, and/or go to the website for your computers manufacturer and look up what is needed when you put in your computers model number.

A few things you and or your technician need to know before purchasing additional memory for your computer; all of which you can learn all of this from your manufacturer's website.... 

• Know your motherboard - What type is it? How many pins are on it (30, 72 or 168)? and how many open RAM slots are available on your motherboard?
• If your computer is still under warranty - Check with your hardware manufacturer before you install new hardware to ensure to make sure your warranty will not be revoked if you remove the cover from your computer.
• Know if the RAM on your computer is parity or non-parity
• Know if your computer uses single (SIMM's) or dual (DIMM's) memory modules.