Question

_______ must be refreshed continually to store information, otherwise, it will lose what it is holding
1. Double Data Rate Synchronous Dynamic Random Access Memory (DDR-SDRAM)
2. Dynamic Random Access Memory (DRAM)
3. Synchronous Dynamic Random Access Memory (SDRAM)
4. Static Random Access Memory (SRAM)

Answer 1

Correct Answer - Option 2 : Dynamic Random Access Memory (DRAM)

The correct answer is Dynamic Random Access Memory (DRAM).

• Dynamic RAM
  • It must be refreshed many times per second to store information, otherwise, it will lose what it is holding. Hence, Option 2 is correct.
  • It is the most common type of memory in use today.
  • Inside a dynamic RAM chip, each memory cell holds one bit of information and is made up of two parts: a transistor and a capacitor.
  • These are, of course, extremely small transistors and capacitors so that millions of them can fit on a single memory chip.

Static Random Access Memory (SRAM)	It is random access memory (RAM) that retains data bits in its memory as long as power is being supplied. Unlike dynamic RAM (DRAM), which stores bits in cells consisting of a capacitor and a transistor, SRAM does not have to be periodically refreshed.
Double Data Rate Synchronous Dynamic Random Access Memory (DDR-SDRAM)	It is a double data rate synchronous dynamic random-access memory class of memory integrated circuits used in computers.
Synchronous dynamic random-access memory	It is any DRAM where the operation of its external pin interface is coordinated by an externally supplied clock signal.