Random Access Memory

Ram is a micro chip which is designed for store and address information while a computer is actually using it. Temporarily store dynamic data to enhance computer performance. By storing frequently used or active files in random access memory, the computer can access the data faster. It is called Random access memory. This is working with hard drive, which stores and access information any time when we need it. It is volatile memory which means that it needs a constant current in order for it to retain information. Once the current is removed, the information disappears. It is temporary storage device which save document for few time. This is also one reason why it is important to save long documents periodically while you are working on them. If your computer experiences even a brief power interruption, all of the information stored in RAM will be lost.

Types of RAM

There are different types of Ram which comes in different types and different needs and budgets.The common type of Rams are given here.

Random Access Memory (SRAM)

This is very fast Ram and very expensive which called Static Random access memory. It is used for primarily caching such as on processor chip. It has multiple transistors for each memory cell and it does not need for refresh.

Dynamic Random Access Memory (DRAM)

It is slower Ram Then others and it has to needs to be refreshed many time in every second. It is consist of capacitor and a transistor. It is not expensive

Synchronous Dynamic Random Access Memory (SDRAM)

It DSRAm is special type of Ram which is used for system Clock. Each chip have their internal registers that accept request from Computer. This Ram tells the processor that next data ready for processing or working which is request by user. It is available at speeds as high as 133 MHz.

Double-Data Rate SDRAM (DDR-SDRAM)

According to the name this is double data Rate SDRAM.It is used for primary woks. It is worked in few second in both side like rising and falling of the clock pulses. It can be installed on chip in dual channels. There is no difference in the actual RAM modules used for dual-channel DDR, but the two sticks of RAM in each channel must be a matched pair (same size and speed).DDR3 is the latest version of DDR RAM.

RAMBUS Dynamic Random Access Memory (RDRAM)

IT is very fast type of RAM which is work with chip in parallel to produce very fast speed. It is very expensive RAM and has been slow in catching on.