12.8
List the physical storage media available on the computers you use routinely. Give the speed with which data can be accessed on each medium.
| Physical Storage Media | Speed |
|---|---|
| Cache (L1) | 1 TB/second |
| Main Memory | 100 GB/second |
| Flash Memory (SSD) | 2 to 3 GB/second |
| Magnetic-disk storage | 50 to 200 MB/second |
See here.