the function of the computer optical drive: you have an optical drive: 1. You can play any DVD-related discs and software or other media or archives. 2. If your system is broken and you can't use the U disk PE system yourself, then you need to use the optical drive to install the system! 3. There is a CD-ROM with engraving, and you can also write all your important data into your blank disk for later backup and storage. A CD-ROM drive is better than no CD-ROM drive. Once you need a CD-ROM drive, it is really a headache if you find that there is no CD-ROM drive. . Optical drive is not expensive, and DVD is 2 yuan. What is the function of the optical drive in 19 yuan

computer with recording?

The CD-ROM drive in the computer is used to drive CDs. CD-ROMs are divided into read-only and read-write, so CD-ROMs are also divided into single-player and read-write. Generally, it is a single-player CD-ROM drive, which is used to put the things on the CD with the corresponding software. Read-write CD-ROM can play and write CD-ROM

CD-ROM has long been the standard equipment for computers, and it is indispensable for installing software and games, because all software now uses CD-ROM as the carrier

What is the main purpose of notebook CD-ROM

Functions of CD-ROM: 1. Installing the system. 2. Enjoy the video CD. 3. Burn videos, pictures and other data files to the CD. 4. You can also transfer and copy all kinds of data on the CD to the hard disk.

what is a computer and a CD-ROM drive? What's the use?

CD-ROM drive, a machine used by computers to read and write CD-ROM contents, is also a common component in desktops and laptops. With the more and more extensive application of multimedia, optical drive has become a standard configuration in many computer accessories. At present, optical drives can be divided into CD-ROM drives, DVD-ROM drives, Kangbao (BO) and burners.

optical drives can be divided into CD-ROM drives and DVD drives. CD-ROM drive: Also known as compact disk read-only memory, it is a read-only optical storage medium. It is developed by using the CD-DA(Digital Audio) format originally used for audio CDs. And DVD drive: it is a kind of drive that can read DVD discs. Besides being compatible with common formats such as DVD-ROM, DVD-VIDEO, DVD-R, CD-ROM, it should also support CD-R/RW, CD-I, VIDEO-CD, CD-G, etc.

with the development of technology, CD-ROM drives are gradually eliminated. At present, DVD drives are the mainstream. D-D drives not only have the function of playing CD-ROM drives, but also support DVD playback. DVD discs are a technology with less compression than CD discs, that is to say, CD discs with the same size can store more things, such as movies. At present, the price of DVD drives is also very cheap, and you can buy brand DVD drives around 1 yuan.

what's the use of an optical drive?

At present, the function of CD-ROM drive has been greatly reduced, which leads to the fact that the user's attention of CD-ROM drive is far less than that of virtual CD-ROM drive, mainly because the most commonly used functions of CD-ROM drive can be replaced by software or smaller applications, so what's the use of CD-ROM drive? Generally, the main functions of the optical drive in our computer are:

1. Watching discs (which can be used to play DVDs or CDs to watch movies, music, etc.)

1. Installing the system

We used the system CD to install the computer system. The CD-ROM installation system is also very convenient. However, the current U disk installation system and virtual CD-ROM installation system have become very simple, so the CD-ROM installation system has been abandoned by many users.

13. Installing application software

Especially some genuine software, it is impossible to provide environment images for downloading on the Internet. Merchants sell them in the form of a CD-ROM, so the software can only be installed with a CD-ROM drive, and the virtual CD-ROM drive cannot be installed.

the most important function of CD-ROM is the above three. At present, the function of CD-ROM has become dispensable in computers, and its function can be largely replaced by a free software (virtual CD-ROM). Here, I believe everyone has a certain understanding of the CD-ROM drive.

what is an optical drive? What's the use?

CD-ROM drive, a machine used by computers to read and write CD-ROM contents, is also a common component in desktops and laptops. With the more and more extensive application of multimedia, optical drive has become a standard configuration in many computer accessories. At present, optical drives can be divided into CD-ROM drives, DVD-ROM drives, Kangbao (BO) and burners.

CD-ROM drive: also known as compact disc read-only memory, it is a read-only optical storage medium. It is developed by using the CD-DA(Digital Audio) format originally used for audio CDs. DVD drive: It is a kind of drive that can read DVD discs. Besides being compatible with common formats such as DVD-ROM, DVD-VIDEO, DVD-R, CD-ROM, it should also support CD-R/RW, CD-I, VIDEO-CD, CD-G, etc.

working principle

the laser head is the heart and the most precise part of the optical drive. It is mainly responsible for reading data, so be extra careful when cleaning the inside of the CD-ROM drive.

the laser head mainly includes: laser generator (also called laser diode), semi-reflective prism, objective lens, lens and photodiode. When the laser head reads the data on the disc, the laser emitted from the laser generator passes through the semi-reflective prism and is focused on the objective lens, which focuses the laser into an extremely fine light spot and hits the disc. At this point, the reflective substance on the optical disc will reflect the irradiated light back, pass through the objective lens, and then irradiate the semi-reflective prism.

at this time, because the prism is semi-reflective, the beam will not completely penetrate it and return to the laser generator, but will be reflected, pass through the lens and reach the photodiode. Because the surface of the optical disc records data with uneven points, the reflected light will shoot in different directions. People define the signals emitted in different directions as "" or "1", and the light-emitting diodes receive the data arranged in "" and "1", and finally analyze them into the data we need.

in the whole process of reading data by the laser head, tracking and focusing directly affect the error correction ability and stability of the optical drive. Tracking is to keep the laser head always aiming at the track of recording data correctly.

when the laser beam coincides with the track, the tracking error signal is , otherwise the tracking signal may be positive or negative, and the laser head will adjust the attitude appropriately according to the tracking signal. If the tracking performance of the optical drive is poor, there will be errors in reading data when reading the disc, and the most typical phenomenon is the skipping phenomenon when reading the audio track. The so-called focusing means that the laser head can accurately hit the beam on the disc and receive the strongest signal.

when the laser beam is reflected from the disc, it will hit four photodiodes at the same time. They superimpose the signals and finally form a focused signal. Only when the focus is accurate, this signal is , otherwise, it will send a signal to correct the position of the laser head. Focusing and seeking are the two most important performances of a laser head, and what we call a good CD-ROM drive is a product with excellent performance in these two aspects.

At present, a few high-end optical drive products such as INTO on the market begin to use stepping motor technology, and the 1/3 addressing time is reduced from the original 85ms to less than 75ms by driving the gear with a screw, which obviously improves the performance compared with the 82ms addressing time of similar 48-speed optical drive products. Moreover, the focusing and seeking of the optical drive is largely related to the disc itself. At present, there are different degrees of center point deviation and uneven distribution of optical media density in both genuine and pirated discs on the market. When the optical disc rotates at high speed, it causes strong vibration, which not only makes the optical disc drive produce wind noise, but also forces the laser head to focus and track repeatedly at the corresponding frequency, which seriously affects the service life of the optical disc drive. In 36X-44X optical drive products, all-steel movement technology is widely used, and energy transfer is realized by hanging heavy objects. However, in the face of high-speed products with tens of thousands of revolutions per minute, the all-steel movement technology seems to be powerless, and the market has launched the optical drive products such as Yingtuo with ABS technology as the core. ABS technology is mainly to configure a pair of steel ball bearings under the disc tray. When the disc vibrates, the steel balls will roll to the lighter part to fill it under the centrifugal force, so as to play the role of instantaneous balance, thus improving the performance of the optical drive.

disc reading speed

The speed of CD-ROM has developed very rapidly, with 24x last year ... > >

What's the use of the notebook computer optical drive

At present, it is not very useful, that is, it can be used when installing the optical disc system, but now the optical drive is rarely used when installing the system with a U-disk, and it is a waste to use an optical drive or a burner to watch DVD. Now there are movies on the Internet, and the high definition is clearer than DVD. If the network downloads for a few minutes so quickly, the optical drive is only a backup. If u *** can't start, you still need to start the optical drive. Westbank > I don't need a CD-ROM drive very much, depending on my personal habits. It's good to have a backup CD-ROM drive. You can also replace the CD-ROM drive of the notebook with a CD-ROM drive bracket. If it is a mechanical disk, you can put it in the bracket, replace the original hard disk with a solid-state hard disk, and install the system and games in the solid-state hard disk, so that the startup and loading speed are very fast, and there is basically no need to wait. Then use an easy-drive cable to use the replaced CD-ROM drive as a mobile CD-ROM drive That is used to restore the limit when your driver is broken or inadvertently deleted, and there is a system disk, which is used to restore the system. Very useful. . Put it away, hehe ...

Do I have to have an optical drive and a burning computer? What's the use?

This depends on your actual needs. A burner is generally used to burn optical discs. If you don't burn optical discs, it's useless to you. Just use an ordinary optical drive. But personally, it's better to burn optical discs with a burner, which costs a little more, just a few tens of dollars. But you can burn optical discs, and you feel that the effect of reading the sea with a burner is much better than that of an ordinary optical drive. If the system is broken, you can also use a burner to burn optical discs as a system.

what does a computer optical drive mean and what is its use?

CD-ROM drive: also known as compact disc read-only memory, it is a read-only optical storage medium. It is developed by using the CD-DA(Digital Audio) format originally used for audio CDs. DVD drive: It is a kind of drive that can read DVD discs. Besides being compatible with common formats such as DVD-ROM, DVD-VIDEO, DVD-R, CD-ROM, it should also support CD-R/RW, CD-I, VIDEO-CD, CD-G, etc. To put it bluntly, it is a memory for playing DVD CD VCD and VCD!