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Storage by Mind Map: Storage

1. Capacity

1.1. the number of bytes a storage medium can hold

1.1.1. Kilobyte (KB)

1.1.2. Megabyte (MB)

1.1.3. Gigabyte (GB)

1.1.4. Terabyte (TB)

1.1.5. Petabyte (PB)

1.1.6. Exabyte (EB)

1.1.7. Zettabyte (ZB)

1.1.8. Yottabyte (YB)

2. physical storage

2.1. storage medium is the physical material on which a computer keeps data, information, programs, and applications

2.1.1. hard disk hard disk drive (HDD) contains one or more inflexible, circular platters that use magnetic particles to store data, instructions, and information Characteristics of a hard disk include: Tracks Sectors Platters Form factor Read/write head Revolutions per minute external hard drive is a separate freestanding storage device that connects with a cable to a USB port or other port on a computer or mobile device

2.1.2. Portable Flash Memory Storage memory card is a removable flash memory storage device that you insert and remove from a slot in a computer, mobile device, or card reader/writer USB flash drives plug into a USB port on a computer or mobile device

3. Cloud Storage

3.1. Cloud storage is an Internet service that provides storage to computer or mobile device users

4. Optical Discs

4.1. optical disc consists of a flat, round, portable disc made of metal, plastic, and lacquer that is written and read by a laser

4.1.1. Optical discs commonly store items in a single track that spirals from the center of the disc to the edge of the disc

4.1.2. Track is divided into evenly sized sectors

4.1.3. CD-ROM can be read from but not written to

4.1.4. CD-R is an optical disc on which users can write once, but not erase

4.1.5. CD-RW is an erasable multisession disc

5. Enterprise Storage

5.1. Enterprise hardware allows large organizations to manage and store data and information using devices intended for heavy use, maximum efficiency, and maximum availability

5.1.1. Network attached storage (NAS) is a server that is placed on a network with the sole purpose of providing storage to users, computers, and devices attached to the network

5.1.2. storage area network (SAN) is a high-speed network with the sole purpose of providing storage to other attached servers

5.1.3. Tape is a magnetically coated ribbon of plastic capable of storing large amounts of data and information