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Learn: Primary and Secondary Storage
OCR H446 Computer Science Specification
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Welcome!Today we'll explore primary and secondary storage. These are key concepts in computer science, helping us understand how devices store and access data.
What is Storage?Storage refers to how computers save and keep data. There are two types: primary storage, which is temporary and fast, and secondary storage, which is slower but permanent.
Primary StoragePrimary storage refers to the memory that the computer uses to store data temporarily while it is being processed. Examples include RAM (Random Access Memory) and cache memory. This type of storage is fast but volatile, meaning it loses data when power is turned off.
What is an example of primary storage?
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Secondary StorageSecondary storage refers to devices that store data permanently, even when the computer is turned off. Examples include hard drives, USB drives, and CDs. This storage is typically slower but can hold large amounts of data.
Which statement is true about secondary storage?
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Why Do Computers Need Both?Computers need both types of storage because primary storage is fast and helps with processing tasks, while secondary storage keeps data safe and allows retrieval later. Together, they ensure the computer works efficiently and retains data even after shutdown.
Primary storage is {{blank0}}, while secondary storage is {{blank1}}.
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Examples of Secondary StorageCommon examples of secondary storage include hard drives, solid-state drives (SSD), optical disks like CDs or DVDs, and flash drives. These are used to store files, software, and operating systems.
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Review Time!Great work! You've learned about primary and secondary storage. Now let's test your understanding with a few questions.
Which of the following describe primary storage? (Select all that apply)
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Secondary storage is used to store data {{blank0}}.
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Which of the following is a characteristic of secondary storage?
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Match the items on the left with their correct pairs on the right
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Well Done!You've completed the lesson on primary and secondary storage. Keep exploring and asking questions to learn even more!
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