Please enable JavaScript.
Coggle requires JavaScript to display documents.
storage - Coggle Diagram
storage
secondary
cloud
sending data to the cloud to be saved
needs an internet connection to be connected to
files can be collaborated on anywhere with an internet connection and updated in real time
magentic
using magnetic charge to find a 1 and 0s
types
Hard Disk Drive
Floppy Disk
magnetic disk
has the highest capacity for the cheapest price at a large scale
solid state
using multiple resistors to create an on/off
types
Solid-State Drive (SSD)
USB Flash Drive
data can be corrupted after time
more resistant to damage and less likely to break as a result of transportation
optical
etching bumps into a reflective surface that can be read as binary
types
CD Drives
Blu-rays
DVDs
cheap to manufacture and easy to transport
easy to snap and can be scratched, losing information/data
non-volatile
data is saved even when no power is sent to the storage device
primary
volatile
data is not saved when no power is sent to the storage device
Cache
small hyper-fast storage based near the CPU
holds frequently fetched instructions by the CPU
speeds up FDE cycle as data can be transferred quicker from the cache than the RAM
RAM
holds frequently used instructions
ROM
Read-Only Memory
holds the boot instructions of a computer system
read only so that the boot instructions cannot be changed / deleted
Virtual Memory
using secondary storage devices as the primary memory
likely to be used when the RAM is full for the computer to keep running