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STORAGE - Coggle Diagram
STORAGE
DEFINITION
Storage holds data, instructions and information for future use
CHARACTERISTICS OF STORAGE
Storage is non-volatile; it does not lose its contents even when the power is off
Storage has bigger capacity compared to memory, which has limited capacity
Transfer rate of storage is slower compared with the transfer rate of memory
STORAGE TERM
BIT, b
BYTE,B
KILOBYTE, KB
MEGABYTE, MB
GIGABYTE, GB
TERABYTE, TB
PETABYTE, PT
EXABYTE, EB
ZETTABYTE, ZB
YOTTABYTE, YB
STORAGE DEVICE
Hardware that records and/or retrieves items to and from storage media
STORAGE MEDIA(SECONDARY STORAGE
The physical material on which a computer keeps data, information, programs and applications
TYPES OF STORAGE MEDIA
HARD DISKS
FUNCTION
Storage device that contains one or more inflexible, circular platters that use magnetic particles to store data, instructions and information
CHARACTERISTICS
High-capacity storage
Components enclosed in airtight, sealed case for protection
Internal hard disk
can be mounted inside a desktop or laptop
External hard disk
separate freestanding storage device that connects with a cable to a USB port or other port on a computer or mobile device
SOLID STATE DRIVES
FUNCTION
Uses flash memory to store data, instructions and information
CHARACTERISTIC
SSDs contain no moving parts
current SSDs storage capacities up to 8 TB
USB FLASH DRIVE
Users plug in a USB port on computers or mobile devices
MEMORY CARDS
Users insert and remove from a slot in personal computer, smartphone, digital camera or card reader/writer
EXAMPLES
CompactFlash
MicroSD
Memory Stick Micro
OPTICAL DISC
Storage media that consists of flat, round, portable disc made of metal, plastic and lacquer that is written and read by a laser
primarily used to store software, data, digital photos, movies and music
COMPACT DISC(CD)
CD-ROM
USERS CAN READ BUT NOT WRITE(RECORD) OR ERASE
CD-R
USERS CAN WRITE (IN SEPARATE TIME) BUT NOT ERASE
CD-RW
USERS READ AND WRITE ON MULTIPLE TIME, ERASABLE
DIGITAL VIDEO DISC(DVD)
DVD-ROM
DVD-R
DVD-RW
BLUE-RAY DISC(BD)
Used to store high-definition and ultra high-definition videos and movies
uses a 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
BD-ROM
BD-R
BD-RE