![Optical storage device - CD CD-ROM : CD Read only memory. When you buy a CD from a store, you can read it, but you can’t save any thing on it. CD-R(WORM) : CD Write once read many. You are able to save to this disk one time, so you can storage an application or your data on it. After you have saved on it once, you can read it many times but can’t save on it again. CD-RW : CD Read Write. You can save your data over and over again, like a floppy disk. Advantages : ,[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Recommandé
Contenu connexe
En vedette
En vedette (15)
Dernier
Dernier (20)
Storage Devices
- 1. Storage Devices By : Emily 10BW
- 3. Very cheap to produce
- 4. Most computers can read CDs. If there is no CD drive, a DVD drive can usually read them
- 6. Smaller storage capacity than a hard drive or DVD
- 8. DVD players can read CDs
- 9. DVDs are now mass produced so they are relatively cheap
- 11. There is no single standard of DVD
- 13. Greater movie support than the competition
- 14. manufacturers can produce the high definition players for much less than Blu-ray.
- 16. Region coding still unclear
- 17. Films aren’t cheaper, even if the player is
- 21. Clear than DVD
- 23. The cost of film
- 24. Presently greater number of movie titles are available on DVD's
- 25. Future uncertainty (even without HD-DVD)
- 27. Cheap
- 28. Useful for transferring small files
- 29. Can be used many times
- 32. Many new computer don’t have floppy disk drives
- 33. Can transport viruses from one machine to another
- 34. Slow to access and retrieve data when compared to a hard disk
- 36. can store large amounts of data - over 100 Gb
- 40. More reliable than floppy disk, because they have no moving part
- 41. More compact and portable than floppy disks or CDs/DVDs.
- 43. The metal part which is inserted into the USB port can be snapped off if they are handled roughly
- 44. More expensive than floppy disks, CDs and DVDs