笔记本接口介绍

笔记本接口介绍 For portable considerations, the usual laptop is to use an external expansion to increase functionality and use, so it is important to have a rich external extended interface / port. But there are still many friends to buy the notebook of product interface is not many, are often confused about the dealer. So, what are these interfaces for? What are they more important, and what are they? Let's take a look at it. 1.USB interface USB should be a more familiar type of interface. At present, this interface can be widely used in connecting all kinds of external equipments such as mouse, keyboard, printer, scanner, sound box, etc.. It should be noted that the mainstream USB2.0 interface has a transmission rate of up to 480Mbps, while the older USB1.1 interface has a theoretical value of only 12Mbps. 2.S-Video output interface S-Video shape looks a bit like the mouse and keyboard interface in common, this interface is used to display the content transmitted to the TV on the laptop, if you have a notebook movies, can be used with the family to share oh! 3.RJ-45 interface, RJ-45 interface, that is, Ethernet card interface. Most laptops now have an Ethernet chip on the motherboard, which provides an Ethernet card interface on the note. Through this interface, users simply need to open a broadband Internet twisted pair into the inside, you can achieve broadband Internet access. (01 ~ 04 graphs) 4.RJ-11 interface, RJ-11 interface, that is, the telephone line interface. The user only needs to connect the telephone line to the interface of the notebook computer, and then the dial-up connection can be realized. Of course, only a laptop with a built-in modulation adapter has this interface. 5.IEEE1394 interface, which is invented by Apple Corp interface. The IEEE1394 interface is used to connect with DV devices. Like the USB interface, it supports hot plug, and it is divided into two standards, IEEE1394a and IEEE1394b, with transmission rates of up to 400Mbps and 800Mbps, respectively. However, the current notebook equipped with IEEE 1394b interface is rare. 6. infrared interface, infrared interface is one of the standard notebook, with this interface can be easily connected with other notebooks, PDA, mobile phones wireless connection. The principle is as common as our TV remote control machine, which is characterized by relatively strong directionality and no obstruction between the two infrared ports. 7.PCMCIA interface (PC card slot), this is a special universal extension for notebook computers, also known as PC card expansion slots. This expansion slot is like a PCI extension slot of a computer, from memory to wireless network card, almost all of them, becoming one of the most important extended ports for notebook. 8.Express card slot which is from a 2 generation Centrino notebook bus began to appear, in some ways it is an upgraded version of PCMCIA. The characteristic is that the transmission bandwidth is much higher than the PCMCIA, but the equipment that supports this bus is relatively few, and the practicability is not very strong. The 9. port replicator / dock dedicated port is generally less scalable than desktop computers due to the size of the notebook itself. Therefore, many notebook manufacturers have developed special equipment for notebook extensions, Commonly referred to as port replicator or docking station. The ports developed by different vendors may vary in size. Most of these ports are designed at the bottom of the fuselage, and some are designed on the side of the fuselage. 10. CD-ROM bracket port, for some of the expansion of business notebook, CD-ROM can be hot plug, you can change to other components as needed. Generally interchangeable components, in addition to different types of CD-ROM drive, generally supports second batteries and hard drives, and some products also support small digital keyboard. 11. card reader interface, with the popularity of digital products, card reader interface has become a necessary interface for many notebooks. This type of interface is usually one - in - one and can be used instead of a reader to read data from a variety of digital storage cards. Like to play digital, in the notebook to pay special attention to the function of the interface oh. 12. Bluetooth interface, which is also a quite popular wireless interface. Compared with the infrared interface, it has the characteristics of faster and more signal coverage, and most importantly, it does not have a strong directionality. As long as the connection device is within the range of Bluetooth coverage, you don't have to aim like an infrared interface. Notebook Bluetooth control shortcut key special tips: use Bluetooth or infrared interface, notebook computer can be connected with the support and the opening of GPRS or CDMA1X mobile phone, so that the notebook computer can access the Internet via GPRS or CDMA1X. So if you want your laptop to connect to the network anytime and anywhere, you'd better pick products with these interfaces. The interface of the notebook is really rich. Besides these interfaces, some interfaces are often encountered. For example, headset interface, microphone interface, DVI interface, PS/2 interface, power interface, etc., in view of everyone has already understood, here is not much introduced. In addition, with the increasing demand for notebook functionality, some new interfaces will inevitably be added, such as the HDMI interface we introduced in the previous issue