what is difference between dynamic ram and static ram?

Answer 1

Abbreviated DRAM, pronounced "dee-ram." A common type of computer memory that uses capacitors and transistors storing electrical charges to represent memory states. These capacitors lose their electrical charge, so they need to be refreshed every millisecond, during which time they cannot be read by the processor. DRAM chips are small, simple, cheap, easy to make, and hold approximately four times as much information as a static RAM (SRAM) chip of similar complexity.


Abbreviated SRAM (pronounced “essram”). A form of semiconductor memory (RAM). Static RAM storage is based on the logic circuit known as flip-flop, which retains the information stored in it as long as there is enough power to run the device. A static RAM chip can store only about one-fourth as much data as a dynamic RAM chip of the same complexity, but static RAM does not require refreshing and is usually much faster than dynamic RAM. It is also more expensive.

Answer 2

Static Ram Vs Dynamic Ram

Answer 3

Static Ram And Dynamic Ram

Answer 4

If I recalled correctly Dynamic RAM stores memory temporary. By temporary I mean once the computer is rebooted the content of the memory is gone. Static RAM store memory more permanently than DRAM. Usually DRAM are what you purchase to speed up or add memory to ur computer to improve performance because thats what the machine uses as its scratch pad. SRAM are used as cache, and other functions that need to store data until it is overwritten or the internal power it has could no longer sustain retaining the memory.

Answer 5

At school, to help memorize the concept, the teacher says that static ram is made of flip-flops that retain data if only you maintain the power on. The dinamic ram, instead, is made of capacitors that discharge timely, so it's necessary to periodically "refresh" (that is, re-write) the content of this memory (usually, a processor has a signal line to determine when the refresh has to be made).

Answer 6

Static random access memory (SRAM) is a type of semiconductor memory. The word "static" indicates that the memory retains its contents as long as power remains applied, unlike dynamic RAM (DRAM) that needs to be periodically refreshed.