Memory stick

Memory stick is a type of removable memory card that you connect hue computer or other piece of electronic equipment to copy and store information typically memory stick used as a storage media for a portable device in a form that can easily be removed for access by a personal computer for example in digital cameras smartphones camcorder music player or portable PlayStation etc.
The memory SD card of today storage data in gigabytes their capacity vary from 4GB 2 128 GB

Blu ray disc

Blu-ray is the successor to DVD the formats name comes from the fact that a blue laser kills the name BluRay reads from and writes to the disc rather than the red laser of DVD players a blue laser can write more data compared to read laser of diabetes as a consequence a blu-ray disc and store much more data in the same to will send the space these days Blu ray disc of capacity 25 GB 50 GB are commonly available wireless special triple layer hundred Gigabyte blue rate is already exists And Labour 128 Gigabyte version have been promise neither can be read by a normal player

Pen thumb drive flash memory

 Another kind of storage device has recently emerged it is called Flash Memory USB memory ki memory the thumb drives  or pen drives and cell phones of today use flash memory.
        What it does used to combine a well tried memory Technology called flash with the convenience of the USB connector flash is a solid state memory that is it has no moving parts unlike Magnetic storage device 9 does it make use of laser unlike optical drives.
  Instead it work in a similar way to Ram the key differences is that data is written in a flash memory even when the power is switched off

DVDs

 DVD is an optical storage device that looks the same as a compact this but is able to hold about 15 times as much information and faster it to the computer about 20 times as fast as a CD ROM a DVD also called a super density disc SD can hold up to 17 gigabytes of data for 4 hours of movie on its side.
   DVDs comes in these varieties DVD rom DVD read only memory DVD DVD recordable and DVD RW DVD writable

Compact disc CD

 The compact disc ocds are optical media the CD are relativity cheap and have a storage capacity of up to 700 MB.
   Sydney cities come in variety of foam that is CD ROM CD read only memory CDR CD record and CD RW CD rewritable

Hard disk

Hard disc the hardest Memorial story information on one or more circular platters hard disc vichar continuity spinning these rotating disc are are coated with a magnetic material and take with a space between them information is recorded on the surface of rotating this by magnetic heads as Teeny magneti spots

Floppy disk Diskette

The floppy disk disk made up of flexible material mylar where one of the oldest type of portable storage device that could store upto 1.44 MB off data but now not used in computers of today so we are not discussing in details