List of Memory Devices of Computer

 

It’s not just us human beings who need memory; computer devices also need memory to store huge amounts of data. Computers use a couple of different types of memory devices accordingly. There are mainly two types of computer memory: primary memory and then secondary memory. Primary memory devices are internal memory components like RAM and ROM Secondary memory includes any external memory device like Optical drives, CDs, DVDs, USB Drives, etc. Talking specifically of the Primary Storage medium, they serve as the key components while your system is working. They are not like Hard Disks; the data vanishes as the system is turned off. 

Find the complete list of memory devices of computer at nexthdd.com.

RAM

RAM stands for Random Access memory. Nothing inside a RAM is permanent. It only contains specific kinds of tasks, like randomly switching between Applications and Software. RAM is directly connected to the CPU. The CPU needs to do the task, and the RAM has all the tasks ready for it. RAM manages all the work files. So when the CPU calls for any specific task, the RAM sends it off. Having more RAM is having more significant power; the management is easy, and switching between tasks is faster.

Static-RAM (SRAM)

Static-RAM or SRAM is unlike DRAM. It does not lose its data gradually because it is provided with power as long as the system is on the go. It is faster than Dynamic-RAM, the data access time is faster

Dynamic –RAM (DRAM)

Dynamic RAM was used in old-time computers. It is a stick mounted with memory cells. Each cell has a transistor and a capacitor. The capacitor contains the data part, and the transistor sends the data out. But by the time the transistor leaks a little charge, the capacitor gradually starts to lose its data. That is why you needed to Right-Click and Refresh the RAM to retain the data inside it. Data access time is higher, thus making it slower than SRAM.

Synchronous Dynamic RAM (SDRAM)

Synchronous Dynamic RAM or SDRAM in-short works in a way that it is provided with an external clock signal sent by the CPU. It sends out data into small 64 bit parts. The clock signals are synchronized, and with every signal, the data is sent accordingly.

Double Data Rate SDRAM (DDR SDRAM)

Double Data Rate SDRAM (DDR SDRAM) is like SDRAM. The synchronous signals provide the flow of data to and fro. But where the difference comes in is that the DDR reads data on both edges of the signal, the rising and falling edges. Double Data Rate SDRAM is the newest type of RAM used in modern computers. DDR4 is the current generation of RAMS; DDR4 and DDR5 are yet to be revealed. Before DDR4, there were DDRs, DDR2, and DDR3 rams. All these types of DDR RAMs have different clock speeds. The oldest type, the SDRAM, has the lowest clock speeds of 100-166 MHz (Megahertz) and the highest transfer rate of 1.3 GB/s. In contrast, the DDR4 can reach the clock speeds of around 17 to 21.3 GB/s data transfer rates.