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STORAGE by Mind Map: STORAGE

1. Storage medium

1.1. physical material which a computer keeps data, information, programs and application.

2. Storage devices

2.1. Hardware that records and/or retrieves item to and from storage media

3. Capacity

3.1. Number of bytes a storage medium can hold

4. Hard drive

4.1. Hard disk

4.1.1. Contains one or more inflexible, circular platters that use magnetic particles to store data, instructions and informations.

4.1.2. Storage determined by :

4.1.2.1. Number of platters

4.1.2.2. Composition of magnetic coating on platter

4.1.2.3. Longitudional or perpendicular

4.1.2.4. Density

4.2. SSD (solid state drive)

4.2.1. Flash memory storage device contains its own processor to manage its storage

4.2.2. Advantages :

4.2.2.1. Faster access times

4.2.2.2. Faster transfer rates

4.2.2.3. Quieter rates

4.2.2.4. More durable

4.3. External hard drive

4.3.1. Separate freestanding storage device that connects with a cable to a USB port or other port on a computer or mobile devices

4.4. RAID

4.4.1. Is a group of two or more integrated hard drives

5. Memory card

5.1. Is a removable flash memory storage device that you insert and remove from a slot in a computer, mobile devices or card reader/writer.

5.2. Examples :

5.2.1. SDHC

5.2.2. SDXC

5.2.3. miniSD

5.3. USB flash drives

5.3.1. plug into a USB port on a computer or mobile devices

6. Optical disc

6.1. Consists of a flat, round, portable disc made of metal, plastic and lacquer that is written and read by by a laser

6.2. Commonly store items in a single track

6.3. Track divided into evenly size of sector

6.4. Examples :

6.4.1. CD-ROM

6.4.1.1. can read but not written

6.4.2. CD-R

6.4.2.1. can write but not erase

6.4.3. CD-RW

6.4.3.1. erasable multisession disc

7. Enterprise storage

7.1. Allows large organizations to manage and store data and information using devices intended for heavy use, maximum efficiency and maximum availability

7.2. Examples :

7.2.1. Network attached storage (NAS)

7.2.1.1. a server that placed on a network with sole purpose of providing storage to users, computers and devices attached to network

7.2.2. Storage area network

7.2.2.1. high speed network with sole purpose of providing storage to other attached servers

7.2.3. Tape

7.2.3.1. magnetically coated ribbon of plastic capable of storing large amounts of data and information

7.2.3.2. tape drive

7.2.3.2.1. reads and writes data and information on a magnetic tape

8. Other types :

8.1. Magnetic stripe

8.1.1. has a magnetic stripe that contains information

8.2. Smart card

8.2.1. Stores data on a integrated circuit embedded in card

8.3. RFID

8.3.1. consists of an antenna and a memory chip contains information to be transmitted via radio waves

8.3.2. reads radio signal and transfer the information to a computer or computing devices