The current technological revolution around the globe has made the world faster with the advancements in sophisticated computer devices. Computer, as a digital machine enables people to work faster than ever before. The memory of a computer is a great feature of this digital tool. RAM, Random Access Memory is the primary tool of data storage that is inserted in the integrated circuit while data can be accessed in any sequence or randomly. Thus it is termed as random access memory or RAM.
The journey of dynamic and static RAM was initiated in 1960s which was readily developed in 1970s. In recent days, the technology is much more user friendly. RAM is classified into two types: Dynamic RAM and Static RAM. Static RAM uses a form of flip-flop to circulate data. It uses almost six transistors for its functioning. On the other hand, Dynamic RAM (DRAM) is typically charged on the capacitor in it.
Dynamic RAM is widely used memory device that is used in the current market. Dynamic RAM chip carries one bit of information and is made of a number of transistors and capacitors. The capacitor keeps the data and the transistor works as a switch to control circulation process.
Static RAM holds the data in the flip flop form where it carries each bit of information. It has different technology and memory storage method to Dynamic RAM.
The basic difference between Static and Dynamic RAM lies mainly in structure and work principal.
•Firstly the main difference in the structure varies due to transistor and capacitor number and setting as just three to four transistors are required for a Dynamic RAM, but six to eight MOS transistors are necessary for a Static RAM.
•Secondly Dynamic RAM memory can be deleted and refreshed while running the program, but in case of Static RAM it is not possible to refresh programs.
•Data is stored as a charge in a capacitor in Dynamic RAM, where data is stored in flip flop level in Static RAM.
•For refreshing a data another capacitor is required in case of Dynamic capacitor, but no refreshing option is available in Static RAM.
•A Dynamic RAM possesses less space in the chip than a Static RAM.
•Dynamic RAM is used to create larger RAM space system, where Static RAM create speed- sensitive cache.
•Static ram is 4 times more expensive than Dynamic RAM.
•Dynamic RAM consumes less power than Static RAM.
•For accessing a data or information, Static RAM takes less time than Dynamic RAM.
•Dynamic RAM has higher storage capacity. In fact it can store 4 times than Static RAM.
With all mentioned differences, the discussion can be concluded by saying that Dynamic RAM is slower than Static RAM, but it has a refreshing option which makes it more viable. Static RAM is costly and takes more spaces than Dynamic RAM, but is faster than the other.