What is DRAM
DRAM or Dynamic Random Access memory stores data in the form of 0’s and 1’s. The processor can access any part of memory randomly. It is called dynamic because it is refreshed every few milliseconds unlike RAM which is refreshed only when the POWER is OFF.
In which form does it store data?
DRAM has cells made up of a capacitor and a transistor, where the data resides. Capacitors need to recharge for every couple of milliseconds to compensate for charge leaks from the capacitor.
Advantage and Disadvantages of DRAM
The main advantages of DRAM are its simple design, speed and low cost in comparison to alternative types of memory. The main disadvantages of DRAM are volatility and high power consumption relative to other options.
DRAM is one of the option when building a computer. Alternative memory choices include static RAM (SRAM), electrically erasable programmable read-only memory (EEPROM), NOR flash and NAND flash. Many systems use more than one type of memory.