What is computer RAM and how does it affect its operation

In order to consciously choose a computer, you need to have an idea of all the parameters that influence the choice. One of these parameters is the computer's RAM. This resource has several names: RAM, RAM (random-access memory) or RAM in the English-language version. And yet what is the computer 's RAM ? This is a special high-speed memory for temporary storage of information. Its feature - high speed and limited storage time: all data is erased when you reboot or shut down your computer.

The computer's RAM is often called a random access device. This means that the processor receives information from the RAM regardless of its location in this device (from an arbitrary point).

Each running program uses a piece of RAM to store information. And if all (or almost all) memory is busy, then the PC or laptop "brakes" and "hangs", that is slows down its work. Therefore, the computer's RAM affects the speed and number of programs that can be simultaneously started. If you Plan to use only text editors, a browser for surfing the Internet and a few simple games, then worry about the amount of RAM is not worth it. If the games and programs are resource-intensive, then you have to delve into the bit depth of the system.

The amount of RAM installed on the computer depends on the system capacity. If the system is 32-bit, then more than 3 GB of RAM should not be put. You can put more, but only 3 GB will be used, the rest of the memory will not be used. With a 64-bit system, the amount of RAM can reach 9 GB, respectively, a computer with such a system - a more powerful device capable of "pulling" several "Heavy" programs.

The RAM differs in frequency. Today there are three types of RAM: DDR has a frequency of 200 to 400 MHz, DDR2 - from 533 to 1200 MHz and DDR3 with frequencies from 800 to 2,400 MHz. The higher the frequency, the higher the speed of operation. But you can not just buy the fastest RAM. The choice of the device depends on the motherboard (which memory is compatible with the motherboard, indicated on the package).

The operative memory for the computer is volatile. This means that when you turn off or short-term power failure, all data from the RAM disappears. Sometimes this property is used to restore the system's performance. Due to a large number of working or worn out programs, the computer's operating memory is overloaded, which significantly slows down the work and increases the reaction time for teams. Therefore, after saving the necessary data, the system is overloaded. At the same time, the contents of RAM are reset (cleared), and the computer's speed is restored until a certain time until the RAM is filled again. If this situation is repeated often, it's time to either increase the resources, or change the computer. Every day, programs use more and more resources, and recently very "smart" systems with the load can not cope.