Types of Memory


What is 'Solid State memory'?

it is a solid state storage device that uses a integrated circuit assemblies to store data

E.g USB Flash Drive.

Advantages of using 'SOLID'

there is no moving parts in a USB Flash Drive( this is an example of a solid state memory)

So it can withstand being thrown around and 'Rough treatment' also

It is getting really cheap nowadays to make

Disadvantages of using 'SOLID'

the price per gigabytes is much higher than hardrives and also can transfer viruses from computer to computer.


What is 'Magnetic Memory'?

It is the oldest in technology can be found in floppy disks, cassettes, tapes

Advantages of using 'Magnetic'

1. it is easy to carry

2. very cheap

Disadvantages of using 'Magnetic'

moving parts make the media slow too read and write.

Magnetic is very vulnerable and can be easily damaged and can be easily wiped.


What is 'optical'?

optical data is read by a laser

examples of optical are:



Advantages of using 'Optical'

It is non volatile memory can be retained even when the power is off

Fairly Cheap to make

Quite Durable depending on what type you use and how you treat it.

Disadvantages of using 'Optical'

Slower access time

If scratched the disk could become unreadable

Requires special drives to read