Random Access Memory and also called RAM and it is a type of Primary memory of Memory. RAM is volatile memory it means when powered off the data stored in the RAM also destroys automatically.
How many types of ram in computer
RAM is two types one is Static RAM(SRAM) and another one is Dynamic RAM(DRAM) These two RAMs widely used in current computers. Static RAM and Dynamic RAM both are considered volatile memory. It means when power is removed from the system as its state is lost or reset.
What is the Memory Unit
The memory unit is the key component of a computer’s memory. It is necessary to set the memory cell to store a logic 1 (high voltage level) and reset it to store a logic 0 in order for it to store one bit of binary information (low voltage level). Until the set/reset operation changes its value, it is kept or saved. Reading the memory cell provides access to its value.
What is SRAM
the memory cell in SRAM is a type of flip-flop circuit, generally designed with FETs. In a memory cell a bit of data is stored using the six transistors. It causes SRAM to have a need for very low power when not being accessed, but SRAM is costly and has low storage density. It is also used as Cache Memory of the CPU
Static RAM Types
Static Random Access Memory (SRAM) is also called as Cachememory of CPU. SRAM are mainly three types L1 Cache Memory, L2 Cache Memory and L3 Cache Memory
What is DRAM
The second type of RAM is DRAM, which is based on a capacitor and transistor. DRAM works Charging and discharging methods this capacitor can stock a high or low charge (“1” or a “0” ) in the memory cell. But, the transistor performs as a switch that occupancies the control circuitry on the chip read the capacitor’s state of charge or change it and the capacitor refresh periodically, the charge in this capacitor slowly escapes away, the main reason for the leaking refresh rate, so DRAM consumes more power, comparatively to SRAM, but DRAM can reach more storage densities and lower unit price compared to SRAM.
Different between Static RAM and Dynamic RAM
| SRAM | DRAM |
|---|---|
| It is Flip Flop Circuit | It is transistor Capacitor Circuit |
| It is Costly | It is low price |
| It Consumes low Power | It consumes more power |
| Low storage density | More storage density |
| Fatser access time | Slow access time |
| Do not require refresh | Must be refresh periodically |
| Used as cache memory | Used as Main memory |
| It generates less heat | It generates more heat |
What is Core in Processor and Its Types? If you want to Know Base clock and Boost Clock
