Learn: The Difference Between RAM and ROM

Welcome!Today we'll learn about the difference between RAM and ROM. These are two key types of memory in a computer system, and understanding them is crucial for GCSE Computer Science.

What is RAM?RAM (Random Access Memory) is a type of volatile memory, meaning it loses its data when the computer is turned off. It temporarily stores data that the CPU needs while the computer is running, such as programs and files currently in use.

What is ROM?ROM (Read-Only Memory) is a type of non-volatile memory, meaning it keeps its data even when the computer is turned off. It stores essential instructions, such as the start-up sequence used when the computer is powered on.

Key Differences Between RAM and ROMHere are the main differences:RAM is volatile; ROM is non-volatile.RAM is used for temporary storage; ROM stores data permanently.RAM is large and fast; ROM is smaller and slower.Both are important for the computer to function efficiently.

Why Do We Need Both RAM and ROM?Computers need both RAM and ROM to function correctly. RAM ensures the computer runs quickly by providing fast, temporary storage for active tasks. ROM ensures the computer can start up properly by storing permanent instructions.

Review Time!Great work! You've learned about the differences between RAM and ROM. Now let's test your understanding with a few review questions.