Data Storage - SS1 Digital Technologies Lesson Notes
Data Storage - SS1 Digital Technologies Lesson Notes SS1 Digital Technologies Lesson Notes Term 1 — Week 3: Digital Data Storage Mechanisms Introduction to Digital Memory In our previous lesson, we learned how the CPU executes code. However, the CPU cannot hold large amounts of information internally. To make a computer functional, it needs a way to store data. In digital systems, data storage refers to the hardware technologies that record, retain, and preserve digital bits (0s and 1s) either temporarily or permanently. Volatile vs. Non-Volatile Memory: • Volatile Memory is temporary storage that requires a continuous electrical current to maintain its data. The moment the device is switched off, everything stored inside it vanishes. • Non-Volatile Memory is permanent storage that safely ret...