There are a lot kinds of computer storage devices such as Hard drives, Floppy drives, Zip drives, CompactFlash cards, Tape drives, SD cards, CD, DVD, and Blu-Ray drives.
Here are some...
Hard Disk Drives
Floppy Disks
Tapes
Compact Discs
DVD and Blu-ray Discs
USB Flash Drives
Secure Digital Cards
Solid-State Drives
The flash drive replaced floppy disks and cd-roms as storage devices. Flash drives are still in popular usage for file storage. Some even use flash drives as back up storage for their whole computer files in the event of a crash.
Tape devices on computers could record and play magnetic tape. They are not so popular now, but would have been before more modern storage devices. Some can still be use for backups of data.
Shipment values for computer storage devices and equipment, which totaled $9.0 billion in 2000, fell to $8.2 billion in 2001. At that time, some 66 companies competed in the domestic market.
Storage devices are different mediums that can hold varying amounts of information. Some examples of storage devices include CD, DVD, flash drives, floppy disks, and tape drives.
Some companies that provide a place for external storage include United and Egbyte. They are very popular.
Some devices do not contain storage devices, or do not have enough storage space needed by a particular user. Extra storage devices such as an external hard drive can be utilized.
Computer data storage, often called storage or memory, refers to computer components, devices, and recording media that retain digital data used for computing for some interval of time. (Source: wikipedia)
It's a storage that is attached internally in the device's box.
That's called 'virtual' memory. The computer 'borrows' some unused hard-disc space to supplement the built-in RAM
Computers write information /data onto some kind of memory device of the which there is a great variety. There are devices for temporary storage and long-term storage.
We don't "need" them, but they are useful for data storage such as general computer data, photographs and videos. As they have got bigger, some DVDs are not as good, so technology moves on to provide larger storage devices, so some people no longer use DVDs, like they no longer us floppy disks, tape and other older storage devices.
There are very many fashion show computer games which are played online using various devices such as smartphones or computers. Some of the most popular games include; 'Jojo's Fashion show' and 'Makeover'.