2. Disc Solid As thisoneconstructed a hard disk? Itis a devicecomposedbyoneorseveralrigidsheets of circular form, coveredwith a material thatmakesthemagneticrecording of informationpossible. A normal hard disk turnsto a speed of 3.600 revolutions per minute and thereadingheads and writing . from 10 to 25 millionthones of inchmove in thesurface of the disc onan air bubble of a depth.
3. Interface IDE Itismostused in normal computers, duetohisgoodrelationpresentations-prices. Thestandard IDE was extended bythenorm ATA-2 in whatit has beengiven in itnamed EIDE (Enhanced IDE orimproved IDE), thatagrees up tofourdevices. In each of thechannels IDE theremustbe a maindevice (master) and anotherslave (slave). Themasteristhefirstoneoneis in thehabit of assigningtohimthebeing C, whiletheslaveis in thehabit of beingthe D.
4. Serial ATA It is an interface of transfer of information between the motherboard and some devices of storage. Serial Ata substitutes the traditional to P-ATA. SATA provides major speeds, better utilization when there is several discs, major length of the cable of transmission of information and aptitude to connect discs in warmly (with the flushed computer)
6. SCSI The hard disks SCSI have the advantage with regard to the IDE not in his mechanics, but in that the transfer of information is more constant and independent from the work of the microprocessor, by it they are in the habit of using in servants and computers that multimedia and Autocad handle or when one realizes multitask of intensive form
7. Unidad de CD The reading of CD, also called CD player, is the optical device capable of reproducing the CD of audio, of video, of information, etc. Using a laser that allows him to read the information contained in the above mentioned discs.
8. CDR o CD-ROM It is a disc compact used to store not volatile information , can be read by a computer with reading of CD.
9. CDRW It is a digital optical support used to store any type of information. This type of CD can be engraved multiple times, since it is allowed that the stored information should be erased
