This document discusses and compares various types of optical storage media and solid state storage devices. It covers CDs, DVDs, Blu-ray discs, solid state drives, memory sticks, and flash memory cards. For each type it provides key details like storage capacity, advantages like portability, and disadvantages such as being read-only or breakable.

1. Storage Deviceneena 10YB

2. Optical backing storage mediasuch as CDs and DVDsCompact Disc / Digital Versatile DiscADVANTAGES :CDs and DVDs are portable i.e. they can be transported from one computer to another.

3. CDs and DVDs can be used to store data.

4. DVDs are used to hold large file such as movie files.DISADVANTAGE:CDs and DVDs are Read Only Memory.-CDs tend to be used for large files (but smaller than 1Gb).neena 10YB

5. CD-ROM DVD-ROMCompact Disc - Read Only MemoryDigital Versatile Disk – Read Only Memory DISADVANTAGE:- It can’t put data more than once.ADVANTAGES: CD-ROM generally holds about 700MB of data or 74 minutes of audio.- DVD-ROM can hold up to 4.7GB neena 10YB

6. CD-R DVD-RCompact Disc - Recordable Digital Versatile Disc - RecordableADVANTAGES:-This is suitable for applications that requires ‘burning of data’.-Retains a high level of compatibility with standard CD readers.- DVD-R has a storage capacity of 4.71 GB.DISADVANTAGES:CD-R can be written only for one time but can be read many times.

7. The data in DVD-R cannot be changed.neena 10YB

8. CD-RW DVD-RWCompact Disc - ReWriteableDigital Versatile Disc -ReWriteableADVANTAGES:CD-RW and DVD-RW are rewriteable and the data can be delete.

9. The capacity for CD-RW is about 650MB to 700MB.

10. The capacity for DVD-RW is typically 4.7GB.DISADVANTAGES:The disc tends to be expensive.

11. Many players don’t handle with RW disc.neena 10YB