What are the common interface standards for CD ROM drives?

IDE interface and SATA (serial port) interface The exact point of the IDE interface should be called PATA (parallel port).

The data transfer rate is the most important performance indicator of a CD-ROM drive.

When users buy CD-ROM drives, they can identify the quality of the product through the following aspects.

Data transfer rate. The data transfer rate of a single speed optical drive is 150 kb s, and the data transfer rate of a 52 x optical drive is 7800 kb s. The data transfer rate is the most important performance indicator of a CD-ROM drive.

Interface type. There are two types of interfaces for common optical drives: IDE and SCSI. Compared with the optical drive of the IDE interface, the optical drive of the SCSI interface has a smaller CPU occupancy, and has the characteristics of fast transmission rate and high data transmission rate.

However, the optical drive of the SCSI interface is relatively high, and it is mainly used in servers and some high-end computers.

Cache. The size of the cache also has a big impact on its performance. The cache capacity of most products is 128KB or 256KB, and some are as high as 512KB. In the case of a small difference, the larger the value, the better.

Optical drive copy is a device used to drive optical discs and complete the information exchange between the host and optical discs, referred to as optical drives.

An optical disk drive is what we usually call an optical drive, which is a device that reads optical disc information. Because the disc has a large storage capacity, is cheap, has a long storage time, and is suitable for storing a large amount of data, such as sound, images, animations, information, movies and other information, the optical drive is an indispensable hardware configuration for many computers.

With the popularity of multi-computer, the application of optical disc (CD-ROM) is becoming more and more popular, and everyone's demand for multi-optical disc software is also increasing, so it can be said that it is a common thing to equip your computer with a drive. However, due to their large size and the popularity of flash drives, more and more laptops no longer have built-in optical drives to make room for other hardware.

There are three types of optical disk drives: AT interface, IDE interface, and SCSI interface.

Now there is a serial hard disk SATA interface, which is the same reason, the reason why it can transmit at a speed of 150MB s, thanks to its serial mode, several signals in parallel can not solve the coarse interference between them at a relatively high frequency, so now ATA 13MBB s parallel hard disk has reached the limit, replaced by stat. In addition, 40 of the 80 channel ATA100 parallel port hard disk data cables are ground wires, which are used to prevent interference between parallel signals in the town.

Serial and parallel ports are ports for connecting peripherals. Both ports differ in form factor, transfer speed, and the devices they can connect to. Serial port transmission is a hidden position one after another, like a string of beads, the parallel port can concurrently transmit data and multiple digits at the same time.

stat, the speed of the nominal bit s, is actually 150m, 300m speed, the fastest single hard disk speed is less than 100mb s, the common speed is 40-60mb s.

There are two standards for execution: serial port and parallel port.

The headphones on the 2000 CD-ROM driver panel are the same specs as the sound card.