DIGITAL STORAGE

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DIGITAL STORAGE by Mind Map: DIGITAL STORAGE

1. Definition:storage medium that keeps data,information,programs and application in a computer

2. A storage medium is physical material on which computer

2.1. Access time measure

2.1.1. amount of time it takes a storage device to locate on a storage medium

2.1.2. Time required to delivery an item from memory to the processor

3. Cloud storage keeps information on servers on the Internet, and the actual media on which the files are stored are transparent to user

4. A storage device is the hardware that record and retrieves item to and form storage media

4.1. Reading

4.1.1. is the process of transferring items from a storage medium into memory

4.2. Writing

4.2.1. is the process of transferring item from memory to a storage medium

5. Storage capacity is the number of bytes a storage medium can hold

5.1. storage term

5.1.1. Kilobyte(KB)

5.1.2. Megabyte(MB)

5.1.3. Gigabyte(GB)

5.1.4. Terabyte(TB)

5.1.5. Petabyte(PB)

5.1.6. Exabytes(EB)

5.1.7. Zettabyte(ZB)

5.1.8. Yettabytes(YB)

6. Volatility

6.1. Volatile:

6.1.1. Screen display

6.1.2. RAM

6.2. Nonvolatile

6.2.1. Content of Storage

6.2.2. ROM

6.2.2.1. Hard disk

6.2.2.2. VCD/CD

6.2.2.3. Floppy/Disk

7. Hard Disk

7.1. Hard Disk known as hard disk (HDD) contain one or more inflexible,circular platters that use magnetic plate

7.2. Function

7.2.1. Store instruction

7.2.2. Store data

7.2.3. Store information

7.3. Characteristics

7.3.1. Tracks

7.3.2. Sectors

7.3.3. Platters

7.3.4. Form Factor

7.3.5. Read/write head

7.3.6. Revolutions per minute

7.4. SSD(Solid State Drive)

7.4.1. SSD is a flsh memory storage device that contains its own processor to manage its storage

7.4.2. Advantages

7.4.2.1. Faster access times

7.4.2.2. Faster Transfer rates

7.4.2.3. Quieter operation

7.4.2.4. More Durable

7.4.2.5. Lighter weight

7.4.2.6. Less power consumption

7.4.2.7. Less heat generation

7.4.2.8. Longer life

7.4.2.9. Defragmentation not required

7.5. RAID

7.5.1. RAID reduntant array of independent disk is a group of two integrated hard drives

8. Optical Disc : consist of flat, round, portable disc that written/read by disc

8.1. CD-ROM

8.2. CD-R

8.3. CD-RW

8.4. DVD-ROM

8.5. DVD-R/DVD+R

9. Enterprise storage: alow large organization to manage/store data/information using devices for heavy uses, maximum effiency/availability

9.1. Network attach storage (NAS)

9.2. Storage area Network(SAN)

9.3. Tape

10. Portable Flash Removable flash memory storage device

10.1. micro SD

10.2. Memory stick PRO Duo

10.3. XD picture Card

10.4. CF

10.5. M2

10.6. SDHC

10.7. SDXC

10.8. miniSD

10.9. microSDHC

11. Other type of storage

11.1. Smart Card

11.2. RFID tag

11.3. NFC Tag

11.4. Magnetic stripe Card