What is the difference between RAM …
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Posted by Anshu Mala Kujur 5 years, 2 months ago
- 2 answers
Gaurav Seth 5 years, 2 months ago
| 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. |
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Aashi Singh 5 years, 2 months ago
0Thank You