Info about Cdroms
CD-ROMS
CD-Rom is an acronym for compact dis read-only memory. It is used by computers to store data and music.
CD-ROM are frquently used to circulate software for computers. The CD-ROM will hold games and multimedia applications but it can be used to store any kind of data. Most CD-ROMs with audio can be played in CD players, but data can only be used on a computer.
When CD-ROM first came out some people thought that it stood for compact disc read only media. They thought that definition was more correct. That was the original intention for the discs and the team who developed it has now managed to get most people to use memory instead of media.
When the CD-ROM was first developed it could hold more data that most computer hard drives. That is no longer true because hard drives have much more data storage space that Blu-ray, DVDs, or CDs. There are some experiements in the works for HVD which could have lots more space and faster delivery of data than the largest hard drive.
CD-ROM discs look exactly the same as an audio CD. The data is handled in a similar way. Audio CDs just store the data in a little bit different way. The discs are made from a piece of polycarbonate plastic that is 1.2 millimeters thick and a think layer of aluminum is placed on them to make the surface reflect. The stand size for a CD-ROM is 120 millimeters in diameter but there are some smaller ones. The Mini CD has a diameter of only 80 millimeters. There are many shapes and sizes that are non-standard. Some are even made in a business card size.
The data is stored on the disc with microscopic indentations. The reflective surface picks up a laser that is shown onto the CD and reads all the information from the indentions and puts is together. This is how it feeds back the information when you place it into your computer or CD player.
Soon after the CD-ROM came out vinyl records and cassette tapes started disappearing just as the eight track tapes before them had done. CDs had a better quality sound and they hold many more songs than either an eight track or cassette tape could hold. You could say that they did to the music tapes what DVDs did to VHS tapes. They virtually put them off the market. Although, you might be able to find a few left around the CD with its shiny reflective aluminum surface has basically taken their place. New cars and trucks now come with CD players. They no longer put cassettes players in the new vehicles because they are obsolete. People who have trouble changing with technology may just be out of luck.
CD-ROMs revolutioned the music and data industry. They can hold much more information that there obsolete counterparts, the music tape players and the computer floppy drives. What will be next? Will the CD-ROM lose it’s place?