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Computer(Storage) by Mind Map: Computer(Storage)

1. Capacity is the number of bytes a storage medium can hold

2. Optical Discs

2.1. A CD‐ROM

2.2. A CD‐R

2.3. A CD‐RW

2.4. A DVD‐ROM

2.5. A Blu‐ray Disc‐ROM (BD‐ROM)

2.6. DVD‐RW, DVD+RW, and DVD+RAM

3. A storage medium

4. holds data,instructions and information for future use

5. Other Types of Storage

5.1. Tape

5.2. Magnetic stripe cards and smart cards

5.3. Microfilm and microfiche

5.4. Enterprise storage

6. Hard Disks

6.1. Characteristics of a hard disk

6.1.1. Capacity

6.1.2. Platters

6.1.3. Read/Write Heads

6.1.4. Cylinders

6.1.5. Sectors and Tracks

6.1.6. Revolutions per Minute

6.1.7. Transfer Rate

6.1.8. Access Time

6.2. Hard disks can store data using longitudinal recording or perpendicular recordin

6.3. Formatting

6.3.1. is the process of dividing the disk into tracks and sectors so that the operating system can store and locate data and information on the disk

6.4. RAID

6.4.1. (redundant array of independent disks) is a group of two or more integrated hard disks