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30 questions
All the mediums that use a ....... source to read or write data onto a disc
Optical storage media are all the mediums that use a light source to read or write data onto a disc
true
false
A disc drive contain the following
A mount for the disc
A laser
A motor
A plate surface
A ....... use to spin the disc across the laser
Optical storage ........ stores data on a disc as a number of data dots that can be read using light
......... storage media stores data on a disc as a number of data dots that can be read using light
These are the features of Blu-ray disc
read data with a blue laser
store High Definition movie
use less power
no moving parts required
These are considered as optical storage media
DVD RAM
Blu-ray disc
Data is read by shinning the laser beam onto the
surface of the disc
Require no moving parts to read the data
A .... needed to read and, or write the data bumps
Optical storage media use ...... access to read the data
What do the initials DVD stand for?
CD-ROMs have a maximum capacity of about .....
When CD-Rs and DVD-Rs are burnt, the laser makes ........ marks
DVD-R's are also available in ..... layer
What do the initials DVD-RW stand for?
The dye used to record data is called phase
........ dye and it allows the bumps of data to
be undone
The dye used to record data is called phase
changing dye and it allows the ........ of data to
be undone
A single layer ___ can store about 4.7Gb of data.A double layer ___ can hold over 9Gb of data.
A CD-ROM drive uses a ____ to read the disc.
laser diode
read/write head
charged-coupled device
CMOS technology
Data can be reliably ...... on DVD-RAM for
many years due to their high quality.
DVD-RAM discs can be ........... over many
times (over 100,000).
'A laser is shone onto the disc and the light is reflected based upon whether it hits a pit or land' describes which storage device?
A pen drive uses sequential access.
True
False
Magnetic tape uses direct access.
True
False
The process of transferring items from a storage medium into memory
Writing
Drawing
Fetching
Reading
Contains one or more inflexible, circular platters that use magnetic particles to store data, instructions, and information
Optical Disk
Usb Flash Memory
Hard disk
SSD
A DVD with a gold layer and a silver layer on both sides of the disc has a ____ structure.
single-sided, single-layer
single-sided, dual-layer
double-sided, single-layer
double-sided, dual-layer
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