Storage Technologies
Common Storage Media
- Punch cards, Tapes, and Drums
- Portable and Fixed Disks, Optical Drives
Fixed Storage Techniques
- Redundant Array of Inexpensive Disk (RAID)
- Data Striping: Better performance, no fault tolerance (Level 0)
- Mirroring: Fault tolerance (Level 1)
- Level 3: Striping with error correction data on a separate disk
Optical Drives: Data is written and read using a laser instead of magnetic media
- CD-ROM, CD-R, CD-RW, DVDs, COLD, WORM