RAM temporarily stores data to improve computer performance. It is volatile memory, meaning it loses data when power is cut. Different types of RAM chips exist, and the motherboard must support them. The cost varies, and new nonvolatile RAM may be available in the future.
Random access memory, or RAM, most commonly refers to computer chips that temporarily store dynamic data to improve computer performance. By storing frequently used or active files here, your computer can access the data faster than retrieving it from the much larger hard drive. RAM is also used in printers and other devices.
This type of memory is called volatile memory, which means that it loses its contents once power is cut. This is unlike nonvolatile memory, such as hard drives and flash memory, which don’t require a power source to hold data. When a computer shuts down properly, any data that is in random access memory is stored permanently on the hard drive or flash drive. The next time you reboot, your RAM starts filling up with programs that load automatically at startup and files that you open.
There are several different types of random access memory chips that come in a different “stick”. A stick of RAM is a small circuit board that looks like a large stick of gum, and these sticks plug into “banks” on the motherboard. Adding one or more sticks increases RAM memory and performance.
Random access memory is classified by architecture and speed. As technology progresses, RAM chips get faster and employ new standards so that RAM must be matched to a compatible motherboard. The motherboard will only support certain types of memory and will also have a limit on how much RAM it can support. For example, a motherboard may support dual-channel synchronous dynamic random access memory (SDRAM), while an older motherboard may only support inline single memory modules (SIMMS) or inline dual memory modules (DIMMS).
Because random access memory can improve performance, the type and amount of RAM supported by a motherboard becomes an important factor when considering a new computer. If there is a faster and better RAM chip on the market, the buyer will want to consider purchasing a motherboard capable of using it. A year later, that “new” RAM may be standard, while the buyer may be stuck with an older-style motherboard. It’s also possible that a new variety of nonvolatile random access memory made with nanotubes or other technologies will be available in the near future. These RAM chips would retain data when powered off.
The cost of RAM varies depending on the type, capacity and other factors. Branded RAM often comes with a lifetime warranty at a competitive price.
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