Computer Studies·Memory & storage · NSSCO 5.1
Memory & storage: RAM/ROM, magnetic, optical & solid state
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Every computer must keep its programs and your files somewhere. In this lesson we sort storage into primary, secondary and off-line, compare RAM and ROM, and see exactly how magnetic, optical and solid-state devices work so you can match the right storage to the right job.
What you'll learn in this lesson
By the end you should be able to (NSSCO Computer Studies 5.1):
- Differentiate between types of storage, including examples: primary (Read Only Memory (ROM), and Random Access Memory (RAM)); secondary (hard disk drive (HDD) and Solid State Drive (SSD)); off-line (Digital Versatile Disc (DVD), Compact Disc (CD), Blu-ray disc, USB flash memory and external HDD)
- Explain how the following storage devices work: magnetic, optical, solid state
- Describe how the above functions are used for storage solutions, e.g. HDDs, CDs, DVDs, Blu-ray discs, USB flash memory, SSDs
- Explain how different storage devices would be suitable for different file formats
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