Question

Hw memory card , pendrives , CD's are capacle of storing data

Answer 1

Secure Digital (SD) cards , pendrives , etc. are used to store data from many modern digital devices. They differ from other storage media in that they can be written to thousands of times and do not require power to retain their contents. This makes them an ideal choice for electronics such as digital cameras, which have strict power requirements and need media that can be written to multiple times. In contrast to traditional hard drives, SD cards also contain no moving parts, so they are significantly more resilient to accidental bumps and falls. This has contributed to their use in MP3 players, which are often subject to shock.