DRAM ( D ynamic r andom a ccess m emory) it needs to be refreshed in every few milliseconds. it stores data either capacitor charged or discharged. e.g - 2GB RAM of pc/laptop. SRAM ( S tatic r andom a ccess m emory ) SRAM doesn't need to be refreshed periodically. it stores data as long as power is being supplied. e.g - cache memory in CPU.
Dynamic random-access memory (DRAM) Dynamic random-access memory (DRAM) is a type of random-access memory that stores each bit of data in a s eparate capacitor within an integrated circuit. The capacitor can be either charged or discharged; these two states are taken to represent the two values of a bit, conventionally called 0 and 1. DRAM is the memory we use as physical memory that helps the PC/laptop to run applications. A DRAM storage cell is dynamic in that it needs to be refreshed or given new electronic charges every few milliseconds to compensate for charge leaks from the capacitor. example PC/laptop it has 2GB of RAM. Static random-access memory (SRAM) SRAM (static RAM) is random access memory (RAM) that retains data bits in its memory as long as power is being supplied . SRAM does not have to be periodically refreshed . example of SRAM is SRAM is used as cache memory.
SanDisk released the world's highest capacity microSD card which is 400GB. Capacity: 400gb Read Speed: up to 100MB/s Video Speed: C10, U1, A1 Form Factor: microSDXC Cost of it $250 (estimate) Price is not decided yet, the price may differ it depends on country to country.
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