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Learn: Difference Between RAM and ROM
OCR GCSE J277 Computer Science specification
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Welcome!Today we'll explore the difference between RAM and ROM. These types of memory are essential in computers, and understanding them will help you see how devices work.
What is RAM?RAM stands for Random Access Memory. It is volatile memory, meaning it loses its data when the computer is turned off. RAM temporarily stores data and instructions the CPU needs while your computer is running. This makes it faster than accessing data from the hard drive.
Quick check: What happens to data in RAM when the computer is turned off?
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What is ROM?ROM stands for Read-Only Memory. It is non-volatile memory, which means it retains its data even when the computer is turned off. ROM usually contains instructions for starting up the computer, known as firmware.
ROM is {{blank0}}, meaning it keeps its data even when {{blank1}}.
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Key Differences Between RAM and ROMThe main difference between RAM and ROM is in their purpose and data retention. RAM is used for temporary storage while the computer is running, whereas ROM stores essential instructions permanently.
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Why Are Both Needed?Computers need both RAM and ROM to function effectively. RAM ensures the computer can handle multiple tasks quickly, and ROM provides the essential instructions to boot the system.
Which type of memory contains the instructions to start up the computer?
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Review Time!Great work! We've covered the definitions, uses, and differences between RAM and ROM. Let's check your understanding with a few questions.
Which of the following are true about RAM and ROM? (Select all that apply)
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RAM is {{blank0}} and used for {{blank1}} storage.
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Match the items on the left with their correct pairs on the right
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