accessibility
actuator
actuator arm
binary code
business
clean
computer
computer equipment
computer language
data
data storage
data transfer
digitally generated image
disk
economic life
electrical equipment
electronics industry
equipment
expertise
fixed disc
fixed disk
fixed hard disk
hard disk
hard drive
high speed
information
information medium
internet
macro
magnet
motion
net
no one
nobody
number
open
pc
read and write head
read write head
reflection
removable
science
security
security system
single object
sparse
storage compartment
technology
tray