1. User perspective: The most intuitive understanding is whether the terminal is connected by a wireless network card or a wired network card
2, optimization Angle: wireless network communication follows the 802.11 protocol, wired network communication follows the 802.3 protocol.
3, contact: Wireless network is installed on the wired network.
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4. The difference in connection
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For connecting network cables, a computer network that uses coaxial cables, twisted pairs, and optical fibers to connect. The device can be connected only if it has a network cable interface.
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For WIFI, as long as the network is set up in advance, it can be directly connected to WIFI for use, and it can be connected between nodes without cables. Relatively improved convenience.
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5, affected by signal interference. For WIFI, the wireless band in the 2.4Hz band is used, which is easily affected by devices in the same band around the user. If mobile phones, headphones, microwave ovens, etc. are placed around the router, the signal may be interfered with. The use of network cables generally will not receive electromagnetic wave interference, and most of the network cables on the market are twisted pair structure, which can resist electromagnetic wave interference to a certain extent.
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6, the difference between signal attenuation.
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WIFI will be affected by walls or obstacles, resulting in signal attenuation, so sometimes you will find that the farther away from the router, the weaker the WIFI signal will be. Dimension IT Butler recommends that you best place the router in an open or high place to reduce obstacles to the signal. However, for network cables, there is basically no problem of signal attenuation.
In simple terms, it can be said that: a dependent line and a non-dependent line.
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First of all, we can all know that the cable network needs a large number of lines and transfers to be able to access the network normally. The cost of this is a sky-high problem, and the traditional network transmission media transmission slow, stability is also general, there are many limitations. For example, a few years ago, dial-up Internet, as long as the call, the network will be interrupted.
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Wireless Internet rugged speaking is through the signal, do not need the line of network transmission, through the radio transmission of the Internet, the current operator base station signal, WiFi, WLAN, etc. belong to the wireless network, the difference with the wired network is also obvious.
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In fact, there are many differences and limitations in the stability and scope of use. Although wired Internet seems complex, to be linked through the wire, but its stability is much higher than wireless Internet access, the simplest example is that the daily Internet 4G signal may be intermittent, and the wired network rarely appears this problem. Secondly, the scope of use of wireless Internet access is actually limited, relative to wired networks, in the future development is likely to greatly exceed the wired network, but at present, it is still in the wired network-based network structure.