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STORAGE - Coggle Diagram
STORAGE
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storage
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characteristics
- non-volatile
- has bigger capacity compared to memory
- transfer rate of storage is slower compared with the transfer rate of memory
storage media
the physical material an which a computer keeps data, information, programs and applications
definition
storage holds data, instructions and information for future use
types of storage media
solid state drive
backwards
- higher failure rates
- cost is much higher
benefits
- faster access time
- faster transfer rates
- more durable & shock resistant( no moving parts)
- generate less heat & consume less power
characteristics
- SSDs contain no moving parts
- current SSDs storage capacities up to 8TB
function
a storage device that uses flash memory to store data, instructions and infomations
optical disc
function
- stores data in deformities on the surfaces of a circular disc and reads this data by illuminating the surface with a laser diode and observing the reflection
- primarily used to store software, data, digital photos, movies and music
types of topical disc
compact disc(CD)
- A type of optical disc used to store data, songs,
drivers and program files
- types of CD
1) CD-ROM
users can read but not write (record) or erase
2) CD-R
users can write(in separate time) but not erase
3) CD-RW
users read and write on multiple time,eraseable
blue-ray disc(BD)
- a types of optical disc used to store high-definition and ultra high-definition videos and movies
-uses blue laser instead of a red laser to read and write data on the disc
- allow for six times more storage than a DVD
- types of BD
1)BD-ROM
2)BD-R
3)BD-RW
digital video disc(DVD)
- used mainly as video and data storage
- holds over 7 times a CD's capacity
- types of DVD
1) DVD-ROM
2) DVD-R
3) DVD-RW
definition
a storage media that consist of flat ,round, portable disc made of metal, plastic and lacquer that is written and read by laser
hard disks
types of hard disks
- internal hard disks
can be mounted inside a desktop or laptop
- external hard disks
separate freestanding storage device that connects with a cable to a USB port on a computer or mobile device
characteristics
- high capacity storage
- components enclosed in airtight, sealed case for protection
definition
storage device that consists one or more inflexible, circular platters that use magnetic particles to store dat, instructions and information
flash memory storage
definition
storage media that uses solid-state chip that maintains stored data without any external power source
function
- commonly used in portable electronics and removeable storage devices
- more durable and shock resistant than other types of secondary storage
types of flash memory storage
- USB flash drive
flash memory storage that users plug in a USB port on computers or mobile devices
- Memory cards
flash memory storage that users insert and remove from a slot in personal computer, smartphone, digital camera or cards reader/writer