1. Optical Discs
1.1. CD
1.1.1. CD-ROM
1.1.1.1. can be read but not written
1.1.2. CD-R
1.1.2.1. can write
1.1.2.2. not erase
1.1.3. CD-RW
1.1.3.1. erasable multisesion
1.2. DVD
1.2.1. DVD-ROM
1.2.2. BD-ROM
1.2.3. DVD-RW,DVD+RW
2. Other Types of Storage
2.1. Tape
2.2. Magnatic Stripecard and smart cards
2.3. Microfilm and microfiche
2.4. Enterprise Storage
3. Hard Disks
3.1. can store data
3.1.1. longitudition recording
3.1.2. perpendicular recording
3.2. characteristic of hard disk
3.2.1. capacity
3.2.2. platters
3.2.3. read/write Head
3.2.4. cylinders
3.2.5. Sectors and Tracks
3.2.6. Revolutions per Minute
3.2.7. Transfer Rate
3.2.8. Access Time
4. Storage Device
4.1. Reading
4.1.1. reading is the process of transfering items from a storage medium into memory
4.2. Writing
4.2.1. writing is the process of transfering item from memory to a storage medium
5. Flash Memory Storage
5.1. memory card
5.1.1. CompackFlash(CF)
5.1.2. Secure Digital(SD)
5.1.3. Secure Digital High Capacity(SDHC)
5.1.4. microSD
5.1.5. microSDAC
5.1.6. xD PictureCard
5.1.7. MemoryStick
5.1.8. Mrmory Stick Micro(M2)
5.2. USB flash drive
5.2.1. plug into a USB port
5.2.1.1. computer
5.2.1.2. mobile device
5.3. ExpressCard Module
5.3.1. fits in an ExpressCard slot
5.3.2. developed by the PCMCIA
5.3.3. uswd in notebook computer
6. Cloud Storage
6.1. WindowsLive SkyDrive
6.2. YouTube
6.2.1. digital videos
6.3. Facebook,MySpace
6.3.1. digital photos
6.3.2. digital videos
6.3.3. message
6.3.4. personal information
6.4. Google Docs
6.4.1. Documents
6.4.2. spreadsheets
6.4.3. presentation
6.5. Gmail,WindowsLive Hotmail,Yahoo!Mail
6.5.1. E-mail message