LO1- 1.2 Types of information storage data Flashcards
What types of information storage data are are there?
Paper, Optical Media, Magnetic media, Solid state Media
What is the traditional form of information storage?
Paper
What is optical Media better known as?
Music and film storage formats
What form can optical media in the form of?
CDs and DVDs
What type of optical media can be read by laser?
CDs and DVDs
What type of Media uses magnetic patterns to store data?
Magnetic media
What form does Solid state media store data and information?
In a circulatory rather than a magnetised disc or tape
What type of characteristic do CDs and DVDs have?
Mutability as CDs and DVDs can not be edited
Which type of storage media is robust?
Solid state media- it has no moving parts- less likely to be damaged if dropped.
What type storage media is used in portable devices?
Solid state media
What do hard drives rely on?
Internal spinning disc as the storage medium
What storage medium can be frequently damaged if dropped?
Hard drive
What happens if magnetic media is placed near magnets?
The information held on them can be inaccessible
What does mutability stand for?
The ability to change content of a storage medium
Which type of storage media devices are in read only format?
CDs and DVDs
Which type of storage media is in read/ write format?
Media like paper
Which type of storage media allows repeated reuse?
Media like paper
What is an example of access to data?
Tape storage has to be searched from beginning to end to find a particular file
What type of storage media?
Tape storage as it does not require quick access to particular files.
Which storage media does not cost much?
Paper
What is the problem with sending large amounts of paper such as books?
If books sent by post or courier the costs are high because of their weight.
What storage media is cheap compared to paper?
Hard drives
What are hard drives slower than?
SSD cards
What other storage options are available?
Hybrid storage
What is storage capacity?
The amount of data that can be stored on each device.
What has miniaturisation done to the amount of storage that can be stored on most devices?
Miniaturisation has progressed, so more data can be held on most forms of storage.
What is the fundamental purpose of storage Media?
To store information
Why is data tape storage not good for general day to day storage?
The difficulty of accessing information held on a data tape means that it is an unsuitable format for general everyday use.
What is a characteristic of a solid state device?
The robustness means that the solid state device is extremely useful in devices that are likely to be dropped.
What storage media do desktops and laptop devices use?
Magnetic hard discs are more likely to be used.
What is the advantage of magnetic hard disks?
The relative cheapness is reflected in price.
What is the problem with CDs?
The relative cheapness means that they are fast becoming a throw away storage device.
What is a benefit of CDs if they get damaged?
The low cost represents a small financial implication and a second copy can be easily made.
