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Storage Devices - Coggle Diagram
Storage Devices
includes
Secondary Storage Devices
Magneto-optical storage device
stores data as a combination of magnetic and optical methods
MO Dosk
Memory Card
stores data in integrated circuit chips
Optical storage Device
stores data as pits and lands on the reflective layer
DVD
HD DVD
CD-ROM
Blu-ray Disc
USB flash drive
stores data in integrated circuit chips
Magnetic storage device
stored data as electromagnetic charges on magnetic surface
Hard disk
Magnetic type
floppy disk
Network Storagee
exists in
Storage system connected to a network
Network-attached storage (NAS)
Storage Area Network (SAN)
Internet hard drives
Storage device directly attached to a file server
can be accessed through
Ethernet or networks using. optical fibre
Storage system connected to a network
Can be described by
Speed
access time
data transfer rate
Capicity
Megabyte (MB)
Gigabyte (GB)
kilobyte (KB)
Terabyte (TB)