Question

How is ROM different from RAM ? ( in points )​

Answer 1

Answer:

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Explanation:

1 . Definition - RAM stands for Random Access Memory. ROM stands for Read Only Memory.

2. Data Retention- RAM data is volatile. Data is present till power supply is present. ROM data is permanent. Data remains even after power supply is not present.

3. Data Access - RAM data can be read, erased or modified. ROM data is readonly.

4. Usage - RAM is used to store data that CPU needs for current instruction processing. ROM is used to store data that in needed to bootstrap the computer.

5. Speed - RAM speed is quite high. ROM speed is slower than RAM.

6. CPU Access - CPU can access data stored on RAM. Data to be copied from ROM to RAM so that CPU can access its data.

7. Capacity - RAM memory is large and high capacity. ROM is generally small and of low capacity.

8. Usage - RAM is used as CPU Cache, Primary Memory. ROM is used as firmware by microcontrollers.

9. Cost - RAM is costly. ROM is cheap.

Answer 2

RAM, which stands for random access memory, and ROM, which stands for read-only memory, are both present in your computer. RAM is volatile memory that temporarily stores the files you are working on. ROM is non-volatile memory that permanently stores instructions for your computer. Find out more about RAM.
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