storage

1. A storage medium

1.1. the physical material on which a computer keeps data,instuctions, and information

2. flash memory storge

2.1. a memory card

2.2. USB flash drives

2.3. an expressCard module

2.4. developed by the PCMCIA

2.5. commonly used in notebook

3. optical discs

3.1. CD- ROM

3.2. CD-R

3.3. CD-RW

3.4. New node

4. A storage device

4.1. the computer hardware that records and/retrieves items to and from storage madia

4.1.1. reading

4.1.2. writing

5. hard disks

5.1. capacity

5.2. platters

5.3. read & write Heads

5.4. cylinders

5.5. sectors and tracks

5.6. revolutions per Minute

5.7. transfer rate

5.8. access time

6. other types of storage

6.1. tape

6.2. smart card

6.3. microfilm&microfiche

6.4. enterprinse storage