Different Types of RAM
Different Types of RAM
RAM stands for Random Access Memory. It is part of the computer system’s Main Memory and is directly accessible by the CPU(Central Processing Unit).
RAM is used to Read/Write data into it, which is accessed by the CPU randomly. It is also used to store data currently processed by the CPU, computer programs, and modifiable data.
Types of RAM
RAM is volatile in nature, which means that if the power to the computer system goes off, the information stored in RAM memory is lost. There are two broad categories of RAMs. They are as follows:
- SRAM
- DRAM
SRAM
SRAM stands for Static Random Access Memory. It is a type of RAM that consists of circuits capable of retaining the stored information as long as power is supplied. SRAM requires constant power. SRAM memories are used to build Cache Memory. In SRAM, the basic memory cell is a Flip-flop. SRAMS are relatively more expensive but faster.
DRAM
DRAM stands for Dynamic Random Access Memory. It stores binary information in the form of electric charges applied to capacitors. In DRAM, bits 0 or 1 are stored in the absence or presence of the charge on the capacitor.DRAMs have higher memory density.
DRAMs suffer from charge leakage and, therefore, need periodic charging. The stored information on the capacitors tends to lose value over time, so the capacitors must be periodically recharged.