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Types of computer memory

Every computer needs memory and this article explains the difference between a type of memory and its use, there are a LOT of memory types so I will only be discussing the best memory for you.

There are several types but the ones we are going to be discussing here are the ones you should use why?, because they are the ones currently used in all machines.
You will usually see the memory in the stores by their module so I compiled a table below to help you find the right motherboard for the memory, remember the higher the module the faster it is because the transfer rate is higher.
So basically there are just to types you should choose:

• DDR2
• DDR3

Memory Types

DDR2

Double Data Rate 2, is what computer used to have after 2003, however this type of computer memory it's getting old, it's still usable especially if you only want a computer to surf the web and/or create documents.

DDR3

Double Data Rate 3, is the relatively new type of computer memory, especially useful for gaming, for a heavy resource application, or if you want a future proof memory.

Computer Modules

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DDR2

Types	Module	Speed
DDR2-400	PC2-3200	*
DDR2-533	PC2-4200 PC2-4300	**
DDR2-667	PC2-5300 PC2-5400	***
DDR2-800	PC2-6400	****

DDR3

Types	Module	Speed
DDR3-800	PC3-6400	*
DDR3-1066	PC3-8500	**
DDR3-1333	PC3-10600	***
DDR3-1600	PC3-12800	****

Advantages and Disadvantages

Type	Advantage	Disadvantage
DDR2	Cheaper memory You can use a cheaper motherboard	Significantly slower than DDR3 Less power efficiency Slower data transfer
DDR3	Better power efficiency Higher transfer rate	Higher price Higher price of the motherboard

Recommendations

I recommend to buy the DDR3 computer memory cause like I said before is future proof, that means that it will pass a longer time before you need to upgrade your memory, however if you are going to just surf the web and just need a really cheap computer, go with DDR2, computer memory nowadays are very inexpensive so, I recommend 4 GB + to any type of computer memory you choose.