The concept of storage devices It encompasses two notions. The dispositives they are machines or systems capable of developing certain actions and fulfilling an objective (they are "ready" For that). He storage , on the other hand, is the action and effect of storing (gathering or storing things, recording information).
In this way, we can affirm that storage devices are devices that write and read data on a medium . These devices, therefore, work together with all the media where the files of a computer or other computer system, both logically and physically.
A hard disk It is a storage device. This type of device has one or more discs that are joined by the same axis and that rotate in a metal structure. Each disc has read / write heads to work with the information.
The CD-ROM drives or DVD-ROM They are also storage devices. These units can only be readers or have the ability to record information in the corresponding format (CD or DVD ). The immense popularity of devices CD ROM and DVD-ROM , given its advantages over the floppy drives, they managed at the time that the last ones were in disuse, because of offering a very limited capacity and a speed of reading and transfer much smaller
Among the storage devices that have grown the most in recent years, are the memory card readers , which are part of the computers through the port USB or of some type of plate. Memory cards are stronger than CD ROM and the DVD-ROM and, given their dimensions and compact nature, they are easier to move.
The history of storage devices shows a wide variety of products, among which are failed attempts to impose new trends; repeatedly, some companies opted for the commercialization of memory cards or optical discs that distinguished them from the competition and allowed them to take advantage of a large portion of the market, but very rarely they have succeeded.
If we travel to the eighties, for example, one of the storage devices used by some computers were the cassettes, the same that were associated in the first place to the distribution of music. To store and read data in them an apparatus was necessary that at first glance looked like a tape player without speakers; This was connected by cable to the computer and did not stand out precisely for its speed or reliability, but for its low cost.
The Floppy (also called floppy disks and, in English, floppy disks or floppy disks) enjoyed great popularity until they were replaced by Rewritable CDs and the USB sticks (the pendrives). Alright its capacity It was very small compared to the subsequent alternatives and they were very prone to fail or break, until the early 1990s there was no one who did not collect them in batteries tied with elastic bands to safeguard (or believe that he did) his personal data, his documents and your favorite applications.
As hard as it seems today, many programs and videogames were distributed in floppy disk packages, which very often exceeded ten. The Windows operating system, without going any further, until its version 95 was offered in this medium.
The current demands of the market with regard to storage devices are the following: that offer a high capacity combined with high read and write speeds; that are light and small, to be able to move them comfortably; that have a compact design that protects the product from falls and other accidents; that its manufacture is economical and, therefore, its sale price, accessible; Consume little electricity.