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This article will explain in detail what the notebook optical drive interface is, and the editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Notebook optical drive interface includes: 1, ATA/ATAPI interface; 2, USB interface; 3, IEEE1394 interface, also known as hot wire interface, is a serial standard developed by Apple; 4. SCSI interface, small computer system interface, is a special interface bus.

The interface of the optical storage driver is the physical link between the driver and the system host. It is the way of data transmission from the driver to the computer. Different interfaces also determine the data transmission speed between the driver and the system.

Optical drive interface type:

1. ATA/ATAPI interface

ATA/ATAPI (AT Attachment/AT Attachment Packet Interface,AT embedded interface / AT additional packet interface) is an extension of the parallel ATA interface in the computer. ATA is also known as the IDE interface, and ATAPI is the industry standard ATA interface for CD/DVD and other drives. ATAPI is a software interface that adjusts the SCSI/ASPI command to the ATA interface, which makes it easier for optical drive manufacturers to adjust their high-end CD/DVD drive products to the ATA interface.

The driver of the ATA/ATAPI interface is also conventionally called the enhanced IDE (EIDE) interface driver, which is an extension of the IDE interface. IDE interface is the most cost-effective product of optical storage products, and it is also the most widely used optical storage interface in the market. The vast majority of optical drives are connected to the host through the ATA/ATAPI interface.

2. USB interface

The full name of USB is Universal Serial Bus, and it can connect up to 127peripherals. Because USB supports hot plug and play, USB interface has become the standard interface of scanners. USB has two specifications, USB1.1 and USB2.0. USB1.1 is a popular USB specification at present. The transmission rate of high-speed mode is 12Mbps and that of low-speed mode is 1.5Mbps. Note: B here means Bit, 1MB/s (megabytes per second) = 8MBPS (megabytes per second), 12Mbps=1.5MB/s. At present, household low-end scanners are mainly USB interface types. The USB2.0 specification is evolved from the USB1.1 specification. Its transmission rate reaches 480Mbps, which translates into MB to 60MB/s, which is sufficient to meet the rate requirements of most peripherals. The enhanced Host Controller Interface (EHCI) in USB 2.0 defines an architecture that is compatible with USB 1.1. It can use USB 2.0 drivers to drive USB 1.1 devices. In other words, all devices that support USB 1.1 can be used directly on USB 2.0 interfaces without having to worry about compatibility issues, and accessories such as USB cables, plugs, and so on, can also be used directly.

Now the hosts have USB interface, so the application of USB optical storage is extremely convenient. As the interface of external optical storage equipment, the application is quite flexible, and there is no need to add additional equipment to the interface to reduce investment.

3. IEEE1394 interface

IEEE1394 interface is a serial standard developed by Apple, which is translated as FireWire Interface (firewire) in Chinese. Like USB, IEEE1394 also supports hot-swappable peripherals, which can provide power for peripherals, save the power supply of peripherals, connect multiple different devices and support synchronous data transmission.

IEEE1394 is divided into two transmission modes: Backplane mode and Cable mode. The minimum speed of Backplane mode is also higher than the maximum rate of USB1.1, which is 12.5 Mbps/s, 25 Mbps/s and 50 Mbps/s respectively, which can be used in most high bandwidth applications. Cable mode is a very fast mode, which is divided into 100Mbps/s, 200Mbps/s and 400Mbps/s. It can transmit high-quality data movies without compression under 200Mbps/s.

1394b is an upgraded version of 1394 technology and is the only home network standard specifically designed for multimedia-video, audio, control and computers. It implements high-performance home networks through low-cost, secure CAT5 (five categories). 1394a has been offering products since 1995, and 1394b is a downward compatibility extension of 1394a technology. 1394b can provide a transmission speed of 800Mbps/s or higher. Although there is no optical storage product with 1394b interface on the market, it is believed that it will certainly appear in front of users in the near future.

Compared with the USB interface, in the early USB1.1 era, 1394a interface occupied a great advantage in speed. After the introduction of USB2.0, the speed advantage of 1394a interface is no longer so obvious. At the same time, the absolute majority of mainstream computers are not equipped with 1394 interface, in order to use, it is necessary to purchase relevant interface cards to increase additional expenses. At present, the external optical storage with simple 1394 interface is basically few, and most of them are multi-interface products with 1394 and USB interface at the same time, which are more flexible and convenient to use.

4. SCSI interface

SCSI- minicomputer system interface is a kind of special interface bus, which can communicate with many types of peripherals. SCSI uses the standard software interface of ASPI (Advanced SCSI programming Interface) to communicate with the SCSI adapter installed inside the computer. SCSI interface is a high-speed data transmission technology widely used in minicomputers. SCSI interface has the advantages of wide application range, multi-task, large bandwidth, low CPU occupancy rate, hot plug and so on.

The SCSI interface provides a powerful and flexible connection for optical storage products, as well as high performance, which can be 7 or more expensive. The optical drive with SCSI interface needs to be used with the expensive SCSI card, and the optical drive with SCSI interface is troublesome to install and set up, so the optical drive with SCSI interface is far less widely used than the SCSI interface optical drive. Optical storage products with SCSI interface are more used in professional areas with special needs, and almost no such interface is used in household products.

This is the end of this article on "what is the interface of notebook optical drive". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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