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DVD

Definition:

DVD stands for Digital Video Disc and is a popular medium for movies. Movies on a DVD are stored digitally. Playing a DVD requires a DVD player or other device, such as a computer, with a DVD drive. DVDs can hold 6-7 times the amount of information as their same-sized counterpart, the CD.

Certain types of writeable DVDs can be used by computers to store data.

Here's a word you may not know...

SRAM

SRAM - SRAM stands for static random access memory. The static nature of SRAM means it does not need to be refreshed periodically. This is in contrast to DRAM or dynamic memory which needs to be refreshed periodically. SRAM requires more transistors than its DRAM counterpart which many consider to be a disadvantage of SRAM.