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notebook computer built-in card selection techniques

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Business notebook shell material selection techniques 2009-10-17 notebook screen visual (professional) 22009-10-17 laptop screen visual (professional) 12009-10-17 notebook shell material technology 2009-10-17 " br /> Today in History:
The choice of laptops built-in card network data communication technique is more secure, reliable, and second, the bandwidth can be a very good guarantee. Laptop built-in network card in the windows was a "network adapter", the English name of "Network Interface Card". Card is a laptop computer for data communication, one of the necessary components, regardless of the use of twisted-pair Ethernet cable, coaxial cable or fiber, must be the exchange of data through the Ethernet card work. Laptop built-in PCMCIA bus interface cards are usually used, this card specially designed for notebook computers customize, volume is much smaller than the PC-card. Built-in PCMCIA laptop card is divided into 16-bit and 32-bit two types, of which 32 are high-performance notebook PC card adapter, and it has 32-bit data transmission, maximum switching capacity of up to 90Mbps, using only 3.3V ultra-low power, battery-powered laptop be able to satisfy design needs. To Ethernet data communication, the card is mainly responsible for sending and receiving network data from laptop computers to send data to the network in accordance with certain requirements for subcontractors and send. And PC-like laptops built-in network card for each block are also a network node by a unique physical address, called "MAC" (physical) address, the MAC address can ensure that the network card has a unique physical ID, so that data routing and transmission. At present, mainstream notebook computers often have built-in card 100M bandwidth, high-end notebook with a 1000M card bandwidth, of course, there are 100M/1000M adaptive network card, this card rates depends on the network cable to connect the other end of the network equipment, bandwidth, if the other end of the 1000M network devices to connect, then this sub-network connection will be switched to 1000M physical connection speed. It is worth mentioning that at present the majority of notebook computers purchase pcmcia interface card RJ45 568A and 568B support the kinds of line sequence pairs automatically adapt, so very convenient to produce and to find Ethernet cable, do not have as to whether making parallel lines or cross-RJ45 lines to worry about. Built-in Ethernet cards are still very important to configure the laptop, one laptop, when everyone in the selection, the best choice built-in high-bandwidth and supports the dual function of kinds of line sequence automatically adapt to network card laptop.
2009-10-17
Describes how to test laptop battery notebook 2009-10-15 temperatures 2009-10-15ABS engineering plastics used in notebook notebook interface 2009-10-15 How to choose? 2009-10-13 rookie will learn skills 2009-10 notebook purchase -12

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