I do not know what RAM (memory), DDR, DDR2 and DDR3 SDRAM
In a computer (PC) or laptop, one of the computers (hardware) which contributed to results and performance of a computer memory or RAM (Random Access Memory). This time we will know a little more on what is RAM and why we need to know the types of RAM DDR, DDR2 and DDR3 SDRAM, and tips if you want to upgrade the RAM.
As its name suggests, the RAM or memory is a data storage device accessible by the processor (CPU – Central Processing Unit). Existing data in RAM can be accessed randomly with the same speed, so-called random (random). The data stored in RAM is temporary, since it can only exist if there is no electricity, or when the computer is on and will be lost if the computer dies.
Existing data in RAM can be accessed much faster than on the hard drive for DDR2 SDRAM, can be faster than 40 to 100 times compared to the hard disk access, and type of DDR3 memory can be 100 to 300 times faster than hard disk access (as an illustration, a SATA hard drive in the real world access to about 80-100 MB / s, while USB 2.0 10 Mb / s to 20 Mb / s).
DDR, DDR2 and DDR3
Today, most computers already using DDR3 memory type (certain types of DDR2). By 2002, perhaps even many computers that use the type of data rate of individual memory (SDR) SDRAM. But after that, its use began to be replaced by a Double Data Rate (DDR), DDR (DDR1), DDR2 and DDR3 is widely distributed. DDR is theoretically capable of reaching transfer speeds of 2 times faster than SDRAM.
Each type is a development of earlier and later versions usually have a higher rate of data and requires less power. DDR2 in theory have 2x the data rate with the same specifications as the DDR (DDR1). DDR3 also has the advantage over DDR2, such as higher bandwidth, latency is more superior, high power output / power of the smaller, and better energy-saving equipment such as laptops.
Each of these types of RAM are not mutually compatible and designed with a different location. More detailed and in-depth about the specifics of each type can see the information on Wikipedia, DDR, DDR2 and DDR3
Upgrading Memory (RAM)
Adding memory usually increases computer performance by sifnifikan (but the amount is too large usually not much effect, for example, if it is more than 4 GB of RAM, usually an increase will not be visible ). For example Windows 7 usually requires at least 2 GB of memory, so for those who have less need to upgrade in order to obtain good performance.
To add (upgrade) of RAM is relatively easy, you just know the type of RAM is used and if there are empty spaces memeriksan to install RAM. Please note the similarity of RAM, and that does not match with the DDR2 DDR1, DDR2 and DDR3 is not. It requires the same type when you are upgrading the RAM.
In addition, a type of RAM usually have a variety of types, such as DDR3-6400, DDR3-8500, DDR3-600 and the other 10 (the highest ratenya transfer case). Despite the different types are always consistent, but the RAM works with a lower rate. For example, 10600 2GB DDR3-to join 2 GB DDR3-8500, increase the amount of RAM to 4 GB, but adjust the lowest yield (DDR3-8500).
What kind of RAM is supported, see the manual / guide moherboard, see what kind of RAM slots or using the software, such as the Speccy. Memory notebook / laptop computers, various sizes slightly different RAM PC / computer, usually only half the RAM on your PC. When you buy a computer store in the SO-DIMM (small outline dual in-line memory module). DIMM is a type of memory.
Maximum amount of memory depends on the motherboard and operating system. The 32-bit operating systems usually do not support more than 4GB of memory, while the 64-bit system, in theory, supports up to 192 GB of RAM (Windows 7). Also, sometimes also limit the maximum number of motherboards, for example, only supports up to 16 gigabytes of RAM.