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Storage device concepts and derived words
Meaning of device storageDevices or data storage units are components that read or write data in media or storage media, and together make up the memory or secondary storage of the computer.
These devices perform the operations of reading or writing the media or media where are stored or, logically and physically, files saved on a computer system.
Data storage devices
Hard diskHard disks have a large storage capacity, but being hosted usually within computer (internal drives), they are not removable easily. To exchange information with other computers (if not connected in network) are to use drives as floppy disks, optical discs (CD, DVD), discs, magneto-optical, USB memory or memories flash, among others.
The hard drive stores almost all of the information we use to work with a computer. In the lodges, for example, the operating system that allows to boot the machine, programs, files, text, image, video, etc. This unit can be internal (fixed) or external (portable), depending on the place that occupies in the Cabinet or computer box.
A hard disk consists of multiple disks stacked on them that moves a small magnetic head that record and read the information.
Floppy drive3.5-Inch drive lets you exchange information using magnetic diskettes 1.44 MB capacity. Although the bearing capacity is very limited if we take into account the needs of today's applications are they still used for exchanging small files, because they can be erased and rewritten many times desired in a very comfortable way, although the transfer of information is quite slow when compared with other media, such as hard drive or a CD-ROM.
To use the floppy disk simply insert it into the floppy drive slot. To eject is pressed the button next slot either executes some action in the graphical environment with which we work (for example, dragging the floppy disk symbol to a represented by a trash can icon).
CD-ROM drive or "reader"The CD-ROM drive allows you to use optical discs of a higher capacity than the 3.5 inch diskettes: up to 700 MB. This is its main advantage, as CD-ROMS have become the standard for distributing operating systems, applications, etc.
The use of these units is widespread, since they also allow read audio compact discs.
To insert a disc, in the majority of the units there to press a button to get a sort of tray where the CD-ROM is deposited. By pressing the button again, the tray is inserted.
CD-RW (rewritable) drive or "recorder"
CD-ROM drives are read-only. I.e. they can read the information on a disk, but they cannot write data in it.
A Rewriter can record and re-record CDs. The basic features of these units are the speed of reading, recording and re-recording. Discs rewritable is normally less than on discs that can only be recorded once. The Rewriter working at 8 X, 16 X, 20 X, 24 X, etc., allow us to record the 650, 700 or more megabytes (up to 900 MB) of a compact disc in a few minutes. It is common to observe three data speed, according to the expression ax bx cx (a:velocidad of reading; recording speed b: c: speed of re-recording).
DVD-ROM drive or "DVD reader"
DVD-ROM drives are apparently the same as the CD-ROM, they can read both disks DVD-ROM as CD-ROM. They differ from the drives CD-ROM that support employee has up to 17 GB of capacity, and in the speed of reading the data. Speed is expressed with another number of the 'x': 12 x, 16 x... But now the x refers to 1.32 MB/s. Thus: 16 x = 21,12 MB/s.
A DVD-ROM drive connections are similar to the CD-ROM drive: motherboard, power supply and sound card. The most notable difference is that all reading DVD-ROM drives may also have a digital audio output. Thanks to this connection it is possible to read films in DVD format and listen to six separate audio channels if we have a good sound card and an appropriate set of speakers (subwoofer more five satellites).
DVD-RW drive or "DVD recorder"
You can read and record and re-record images, sound and data on disks of several gigabytes of capacity, with a capacity of 650 MB to 9 GB.
Magneto-optical disk driveMagneto-optical disc drive allow the process of reading and writing these discs with floppy disks hybrid technology and optical discs, although in home environments they were least used that floppy drives and CD-ROM drives, but they have some advantages in terms of floppy disks:
• On the one hand, to support large capacity disks: 230 MB, 640 Mb or 1.3 GB.
• In addition, are rewritable discs, so it is interesting to use them, for example, to make backup copies.
Memory card readerMemory card reader is a peripheral that reads or writes to memory flash brackets. Currently, those installed in computers (including on a plate or via USB port), DVD readers, digital frames and other devices, often read various types of cards.
A memory card is a small storage medium that uses flash memory to save the information that may be required or not batteries (batteries), in later models the battery is not required, the battery was used by early models. These memories are resistant to external scratches and dust that have affected previous forms of portable storage, such as CDs and floppy disks.
Other storage devicesOther storage devices are flash memory or large capacity magnetic storage devices.
• Perforated tape: it's a very obsolete, consisting of cards or punched paper tape medium.
• Memory flash: is a type of memory that is marketed for the use of handhelds, such as digital cameras or PDAs. The corresponding device or else a card reader, connects to the computer via the USB or Firewire port.
• Disks and magnetic tapes of great capacity: are special units that are used to perform backups or backup in companies and research centres. Its storage capacity can be hundreds of gigabytes.
• Storage online: today also should talk this way of storing information. This mode allows freeing up desktop computers and transfer files to remote hard disks provided that normally guarantee the availability of the information. In this case we can speak of two types of online storage: storage of short term normally intended for the transfer of large files via the web; another long-term storage, designed to preserve information that normally would be in the hard drive of your personal computer.
Definition of device storageIn the field of technology, especially computers, there are some instruments that can be used to store data of all kinds, some mobile phones and others not. These data storage devices are essential for computers to operate since the data required to carry out the different operations and internal processes they take of them. In addition, are in them where the user saves their data and personal information. Some of the storage devices are mobile, i.e. which are intended to be removed from the computer, thus enabling the person which record and store the data you already have on your computer and transport them to another port.
One of the devices of storage more important and Central for a computer or other similar devices is the hard drive. In general, hard disks can be removed from computer if you take it apart you, but the idea is to remain in it, are thus not considered fully mobile. All units already come with their own hard disk and it is in where are stored not only programs that have the machine, if not also files of all types that the person can be creating as it is used. They are usually higher capacity storage devices, although its biggest problem is that to be United to the computer, if it is damaged, is blocked access to these data.
Other very common and mobile storage devices are CD discs on which you can record information that interests the user to then be reproduced or displayed on another computer. Old diskettes were one of the earliest mobile forms of storage, although nowadays they are not used more. Finally, known as Pendrive or USB devices are small gadgets that allow you to carry information from one computer to another, and can be erased and reused infinitely (unlike what happens with the CDs).
Concept of device storageThe concept of storage devices encompasses two notions. The devices are machines or systems capable of developing certain actions and fulfill a goal (are "prepared" for that). Storage, on the other hand, is the action and effect of storing (gather or store things, record information).
In this way, we can say that storage devices are devices that write or read data on a stand. These devices, therefore, work together with all the means where are stored the files on a computer or another computer system, both logical and physically.
A hard drive is a storage device. This type of device has one or more disks that are United by a same axis and rotating in a metal structure. Each disc features read/write heads to work with the information.
CD-ROM or DVD-ROM drives are storage devices. These units can be only reading or have the ability to record information in the corresponding format (CD or DVD). CD-ROM and DVD-ROM devices were floppy drives are obsolete, since this storage device offers, according to the parameters of the current technology, a very limited capacity.
Storage devices that have grown in recent years, include memory card readers, which are part of computers through USB port or some type of plate. Memory cards are more resistant than the CD-ROM and DVD-ROM and are more comfortable to move.
What is storage deviceOn the computer we find different types of memories, having for example the case of the RAM (Random Access Memory, either on Spanish random access memory) that will have access to random reading and writing of information, but without a permanent data storage to cut off the electric power, they will lose.
On the other hand we have the case of the ROM memory, which counts with basic functions and diagnostic equipment, and only permits its reading, although his writing is modifiable but not in a simple way, since it has been written initial and only by the manufacturer of the component.
And on the other hand we have what is considered a permanent memory, although his name by which he is best known is that of storage media, taking a large number of devices available for that purpose.
In this genre we then find a wide variety of genres that itself, continues to evolve is from obsolete cartridges which were used in magnetic tapes, until the tapes themselves such, either remembered floppy disks in its various formats, until the latest optical media.
The truth is that the functionality of all of them is the same, taking into account who only seek the permanent storage, or at least until the user decides to their disposal in case if possible, remaining in this environment available for later reading or modification.
The storage media for excellence in a computer is the hard disk, which is permanently located on the computer, in contrast, known as removable media, being currently used the optical disk in various formats, from the nearly-obsolete CD-ROM, until the existing DVD-ROM and surprising Blu-Ray discs, each with their different formats and capabilities.
The main advantage that keep the removable media is precisely its ineffable and high portability, allowing not only sending information securely from one computer to another, but the possibility of performing backups that allow you to keep our information safe and prevent losses due to faulty in regards to the electronic circuits of the equipment or any other action that harms the information contained in the computer.
This storage technology is in constant evolution, increasing not only the storage capacities, but also the performance of the various devices.
Meaning of device storageFLOPPY disk is a data storage consisting of a circular form of matter of magnetic size 3.5 size and its capacity is 1.44 Mb.
THE hard disk is a storage device that belongs to magnetic disks your information is read from a disk that rotated and that are covered with a magnetic film and its capacity is 500 GB.
THE compact CD is a digital optical media to store any type of information, i its size is 120 mm and 650 to 700 mb capacity and 80 minutes.
MINI CD is a compact disc in a reduced format and works as a mini cd i is identical to the COMPACT CD and its size is 80 mm and 120 MB capacity.
CAR CD is an optical media in a digital information and its capacity is 32 MB, and its size is 85 mm x 58 mm.
A DVD is the most versatile support when multimedia function and is characterized by its speed its size is equal to a CD and its capacity is 4.7 to 17 g. the ZIP is a magnetic, removable and device of high capacity that can be read and write using Zip drives its size is 9 CM and its capacity is 250 to 750 MB BLUERAY is a form of optical disc of new generalization of video high definition and storage and its size is 12 cm and its 50 GB to 25 GB capacity.