Understanding CD ROM, CD ROM Drive, DVD ROM, DVD ROM Drive Full
Understanding CD ROM, CD ROM Drive, DVD ROM, DVD ROM Drive Full - Know your CD-ROM and DVD ROM
Understanding CD ROM, CD ROM Drive, DVD ROM, DVD ROM Drive Full-CD (Compact Disc) and DVD (Digital Video Disc) now commonly used worldwide because it is a reliable standard equipment. The CD can be easily carried and could even to save the data. In General, the sense of CD-ROM (Compact Disc Read Only Memory) is a medium for storing data or other information in very large quantities (more than 600 megabytes). Far greater if we compare it to a floppy disk (1.4 MB). CD ROM can be accessed and read on screen, or printed from any computer that has a CD-ROM player. A CD can store information in various forms, such as: text, images, presentations, slides, audio and video. Then how the CD-ROM was made?
CD ROM history starting in 1983 data storage systems on optical discs were introduced with the release of the
Digital Audio Compact Disc. Since then the optical disc storage technology on developing.
Ingredients The Makers Of CD ROM
CD-ROM are generally made of resin (polycarbonate) and coated surface that is very reflective like aluminum. Information recorded digitally as microscopic pits on a reflective surface. This process is carried out using high-intensity laser. Perforated surface is then coated by a layer of nodes. The information is read using low-intensity laser that illuminates the clear coating while the motor
rotating disc.
The intensity of the laser is changed after hitting the holes are then detected by the terefleksikan and fotosensor which are then converted into digital data. Writing data on a CD-ROM can only be done once. However, this has the advantage of optical disc in terms of mobility. Its small and thin making it easy to carry everywhere.
Compact Disk Read Only Memory, optical storage Media are physically identical to the CD-Audio in was first used as a storing sound recordings. This medium is read using the CD-ROM Drive. Access speed CD-ROM drive is typically measured in units of speed. 1 x speed is equivalent to 150 kBps (kilbyte per second) read speed on the CD Audio device.
Disc Type CD
CD disc that we often see in the market are divided into three namely, CD-ROM, CD-R and CD-RW. Each has its own characteristics.
CD-ROM
CD-ROM disc usually colored silver. The manufacturing process is the way to put a piece of plastic that have been irradiated by the laser beam. Laser beams that will form a sort of pit (pit) micro-sized, which is very small. The holes that will form the contents code row of the form data. Once created the hole, then there can be closed again. Then a layer of plastic that will be wrapped again by the molten plastic which is useful as a protector and reflectors. All of that process is done gradually in a machine prints. Tool mould CD-ROMs resemblance sweet martabak cookie cutter and also making similar analogies like that.
In accordance with its name the ROM (Read Only Memory), the data in the CD-ROM cannot be erased so that
CD-ROM cannot be erased or recorded on CD Writer we have.
The quality of the CD-ROM drive specified by the third layer as in the picture. The lining of the reflectors must be able to reflect the light emitted by the laser beam with the perfect so that information dilapisan data can be read properly. Temporary protective coating should be strong so that the data layer is not damaged because of a scratched or dirty.
The original CD-ROM are generally more durable than pirated CD-ROMs. Because the quality of layers on the original CD-ROM is very powerful and qualified under the standards of reliable quality. But not a possibility there are pirated CD-ROM berkualias, but the price is not cheap.
CD-R
Stands for Compact Disc Recordable. The dish is commonly colored green, but there is a
Blue, red and black. The manufacturing process is virtually the same with CD-ROM, i.e. in a way put a sheet of plastic and lining. The difference is that plastic has not been irradiated by the laser. Then a layer of plastic that will be wrapped again by the molten plastic which is useful as a protector and reflectors. Then when a plastic sheet that will be laser irradiated? The answer later on when we wanted to record it. That's why C-R is called also with CD-Blank because the contents are still empty.
Determine the quality of CD-R also equals quality CD-ROM. But there are to be so extra attention, namely because the recording process is done after CD printed and there are so many CD-R's on sale over the counter, then the quality of the sheet in the CD-R it must match with CD Writernya.
CD-RW DRIVE
CD-RW drive which stands for Compact Disc Rewritable is a type of CD we can content themselves, then we can delete the contents if desired. The price of the CD-RW drive is usually more expensive than CD-R
DVD ROM
Digital Versatile Disc-Read Only Memory. Types of storage media with physical form is similar to the CD-ROM but has a much higher capacity and the ability to save on both sides. DVD-ROM is typically used for storing mutimedia files are large.
CD ROM Drive
Compact Disk Read Only Memory Drive, is a reader of CD ROM on a computer, either in the form of CD programs, movies, songs, etc. Design standard for devices such as the CD-ROM drive is ATA-PI
(Advanced Technology tachment – Packet Interface) that is connected to the IDE interface.
An example of the speed rotation of the CD ROM Drive:
8 x, 16 x, 24 x, 32x, 48 x and 50 x, 52x, 56x
DVD ROM Drive
is a DVD ROM reader devices on the computer, whether in the form of DVD programs, movies, songs, etc. For the moment the speed of rotation of the DVD still revolves around 16 x.
