Digital Storage

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Digital Storage by Mind Map: Digital Storage

1. RAID (redundant array of independent disks)

1.1. Is a group of two / more integrated hard drives.

2. External hard drive

2.1. Is a separate freestanding storage device that connects with a cable to a USB port.

3. Example of hard drives

3.1. SSD (Solid state drive)

3.1.1. Advantages: Faster access times,faster transfer rates,more durable and lighter weight.

4. Is the physical material on which a computer keeps data,information,programs,and application.

5. Example of storage

5.1. Storage device

5.1.1. Is the hardware that records and/or retrieves items to and from storage media.

5.2. An illustration of of volatility

5.3. Screen display volatile

5.4. Contents of most RAM volatile

5.5. Contents of storage Nonvolatile

5.6. Capacity : Is the number of bytes a storage medium can hold.

5.6.1. Storage Term Kilobytes (KB) Megabytes (MB) Gigabytes (GB) Terabytes (TB) Petabytes (PB) Exabyte (EB) Zettabyte (ZB) Yottabyte (YB)

6. Enterprise Storage

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

6.2. Network attached storage (NAS)

6.3. Storage area network (SAN)

6.4. Tape

7. Hard Drives : Hard disk drive (HDD) contains 1 / more inflexible,circular platters that use magnetic particles to store data,instructions,and information.

7.1. Characteristics of hard disk

7.1.1. Tracks

7.1.2. Sectors

7.1.3. Platters

7.1.4. Form factor

7.1.5. Read/Write head

7.1.6. Revolutions per minute

8. Portable Flash Memory Storage

8.1. A memory card is a removable flash memory storage device that you insert and remove.

8.1.1. For example : SDHC,SDXC,miniSD,microSDHC,microSDXC,CF,xD Picture Card,Memory Stick PRO Duo,M2.

9. Cloud Storage

9.1. Is an internet service that provides storage to computer or mobile device users

9.1.1. Example Optical Disc CD-ROM CD-R CD-RW DVD-ROM DVD-R+DVD+R DVD-RW,DVD+RW and DVD+RAM DVD-RW, DVD+RW and

10. Other types of Storage

10.1. Magnetic stripe card has a magnetic stripe that contins information

10.2. A smart card stores data on an integrated circuit embedded in the card.

10.3. RFID tag consists of an antenna and a memory chip that contains the information.

10.4. NFC-enabled device contains an NFC chip and contains information to be transmitted.