Please enable JavaScript.
Coggle requires JavaScript to display documents.
2.5 Storage - Coggle Diagram
2.5 Storage
Optical disc
Optical disc is a storage media that consists of flat round, portable disc made of metal ,plastic and lacquer that is written and read by a laser.
Compact Disc (CD)
A type of optical discussed to store data ,songs ,drivers ,and program files
Types of CD
a) CD-ROM : Users can read but not write (record) or erase
b) CD-R : Users can write (in separate time), but not erase
c) CD-RW : Users read and write on multiple time, erasable
Digital Video Disc (DVD)
•Used mainly as video and data storage.
•Holds over 7 times a CD’s capacity.
•Types of DVD are:
a) DVD-ROM
b) DVD-R
c)DVD-RW
-
Types of storage media
Hard Disk
Function:
Storage device that contains one or more inflexible, circular platters that use magnetic particles to store data ,instructions and information
Characteristic:
-High-capacity storage.
-Components enclosed in airtight ,sealed case for protection.
-
External hard disk
An external hard disk is separate freestanding storage device that connects with a cable to a USB part
Solid State Drives
Function
A storage device that uses flash memory to store data , instructions and information
Characteristics
SSDs contain no moving parts
Current SSDs storage capacities up to 8TB.
Flash Memory Storage
-
Memory cards
Flash memory storage that users insert and remove from a slot in personal computer, smartphone, digital camera, or card reader/writer
Example: Compact Flash, micro SD, Memory Stick Micro
-
-
-
-
-