1, abbreviated as: WLAN. It is a very convenient data transmission system, which uses Radio Frequency (Radio Frequency; RF technology, the use of electromagnetic waves, instead of the old obstructive twin-pair copper wire (Coaxial) composed of the local area network, in the air communication connection, so that the wireless local area network can use a simple access architecture to let users through it, to achieve the ideal state of "information portability, convenience to go the world". 2, wireless local area network is a particularly convenient data transmission system, it can use radio frequency technology, the use of electromagnetic waves in the airThe communication signal connection enables the user to use the access architecture of the wireless local area network to achieve the ideal state of "information portability and convenience in the world".
3, Wireless Local Area Networks full name: Wireless Local Area Networks; Shorthand: WLAN.
4, Wireless LAN is the use of wireless technology to transmit data, voice and video signals in the air. As an alternative or extension of traditional cabling networks, wireless local area networks free individuals from the desk, enabling them to access information and improve their performance anytime and anywhereThe office efficiency of the staff.
5, wireless local area network, generally refers to WLAN wireless network, WLAN is working in 5GHz or 5GHz band, wireless LAN, referred to as wireless LAN. WLAN communication systems, as an alternative to wired LAN, are generally used within the same building.
6, wirelessLAN English name: wirelessLANWLAN, and we generally use switches or routers to form a local area network similar, but the use of wireless technology, it uses radio frequency technology to replace the old obstructiveThe local area network composed of twisted-pair copper wire makes the wireless local area network can use the simple access architecture to let users through it to achieve the ideal state.
1. An Uninterruptible Power System or Uninterruptible Power Supply (UPS) connects batteries (mostly lead-acid maintenance-free batteries) to the host and converts DC power into mains power through module circuits such as the host inverterThe system equipment. It is mainly used to provide stable and uninterrupted power supply to a single computer, computer network system or other power electronic equipment such as solenoid valve and pressure transmitter.
2, according to the condition of the equipment, the power environment and the power protection purpose you want to achieve, you can choose the suitable UPS; For example, for low-power equipment with built-in switching power supply, backup UPS can generally be used, online interactive or online UPS should be used in places where the electricity environment is harsh, and for equipment that does not allow for intermittent time or require sine wave alternating current, only online UPS can be used.
3, UPS is short for Uninterruptible Power Supply, that is, in the event of a power failure, it can replace the mains power and supply power to the equipment, just like emergency lighting equipment.
4, UPS means "Uninterruptible Power Supply" in Chinese, is the abbreviation of English "uninterruptible power supply", it can ensure that the computer system continues to work for a period of time after a power failure so that users can save disks in an emergency, so that you will not be affected by power failure or loss of data.
5, UPS is the abbreviation of the English Uninterruptiable Power Supply, translated as uninterruptible power supply. From the development of rotating generators in the 1960s to the current static full electronic circuit with a certain degree of intelligence, it is also maturing with the rapid development of electronic technology, especially power devices and automatic control technology.
6. Definitions of EPS and UPS Emergency Power Supply (EPS). When the mains fails, EPS continues to supply power to loadsWhat does China Mobile TD-SCDMA mean? What does China Mobile TD-SCDMA mean?
TD-SCDMA is the abbreviation of English Time Division-Synchronous Code Division Multiple Access (Time Division Synchronous Code Division Multiple Access), the third generation mobile communication standard proposed by China (3G for short), It is also one of the three 3G standards approved by ITU, which is based on China's intellectual property rights and is widely accepted and recognized internationally>
TD-SCDMA is the 3G network standard of China Mobile, the frequency band upstream: 1880-1920MHz, downlink 2010-2025MHz. < / p > < h2 id = 'lb is what key - lb what is key, lb, is that what the key' > lb is what key - lb what is key, lb, is, and what key < / h2 >1, LB is the abbreviation of the Left Bumper wireless charger , representing the wireless charger is the game handleLeft shoulder key. Before going into detail, you need to understand where the LB key usually occurs. The LB key mainly exists in all kinds of game controllers, such as the left shoulder of Xbox, PlayStation and other controllers. It was originally designed to be quick and easy for players to navigate during the game. Next, we can further explore the specific functions and uses of LB keys.
2, that is, LB LT is the use of the left index finger, RB RT is the use of the right index finger, because it is in accordance with the ergonomic design of the setting, using the finger stomach to press the trigger key, with the second jointSide press button key; The ps handle and the ps button setting of the handle, the shoulder key is used to press two fingers, L1 R1 is the left and right index finger, L2 R2 is the left and right middle finger, which is also related to the ergonomic design of the handle.
3. The lb key is the key to the left of the space bar. In the layout of a computer keyboard, the lb key usually refers to the key to the left of the space bar. This key may be labeled differently on different keyboards, but usually it will be labeled "lb." This button is used on most keyboards to quickly access certain functions or gamesThe action is used in combination.
4. LB stands for LEFT BUMPER. Knowledge extension: The same pair on the right is called RB RT. The Chinese meaning of TRIGGER and BUMPER is "trigger" and "bumper" respectively (you read that right, that's the official name). It doesn't have any special meaning, it's the name of the game controller when it was designed.
1. WLAN is a wireless local area networkAmong them, WIFI WIMAX is a standard wireless broadband network card in WLAN. In order to meet the various Internet access needs of users, multiple access technology interfaces can be set up, and 1X can be used when there is no 3G signal (although the speed is slow, it can still surf the Internet). In a WLAN environment (now generally have their own home wireless router is not) you can use WLAN speed is stable and free.
2, X is the abbreviation of the second generation of mobile communication CDMA 1X, which is the CDMA network used by Unicom in the early days (now classified as Telecom). Telecom WLAN is a commercial networkThe theoretical speed is much faster than the 3G network, but the coverage is limited, less than the 3G network. I'm in this regiment. It's about helping people.
3, G is CDMA2000 1X EV-DO, where 1X refers to 2G CDMA, EV-DO is the technical name of 3G CDMA, in order to simply display as 3G on the mobile phone, so that 3G CDMA mobile phones are compatible with 2G and 3G networks. Two networks are displayed on the mobile phone, 1X and 3G. It just means that your phone is connected to the signals of both networks.
4, 3Maximum width 156kpbs; 3G includes voice and Internet service, voice service and the second generation of digital mobile communication system is the same, 3G Internet service coverage is slightly smaller than 1X, the current Internet access with broadband up to 1M, much higher than 1X Internet access.
6, China Telecom's wireless broadband (1X) network rate is 156K. Wireless broadband (3G) uplink speed is 8M, downlink speed is 1M. WLAN is hot spot coverage, speed theory up to 54M, the speed is quite fast, and now laptops and many terminals (mobile phones with WIFI function) can be high-speed Internet access in hot spots. At terminalSearch for China Telecom hotspots with wireless WIFI signal sign ChinaNet, where WLAN can be used.
cell phone is a noun.
Abbreviation for mobile phone is MB: mobile phone.
mobile pronunciation: English [mbal] American [mobl]adj (verb) : non-fixed; Moving; Easy to move; One's legs are handy; Easy to change social class (or work, residence); It's fluid. n (n) : wind chimes;Pendant (that swings in the wind)
Americans say "cell" or "cell phone". The British say mobile (for short) or mobile phone.
The abbreviation of mobile phone is "T". Generally, mobile phones have the following English abbreviations, which are commonly used to indicate "mobile phone" on business cards. M/T: Mobile Telephone, M/P: Mobile Phone, H/P: Hand Phone (commonly used in Southeast Asia), Cell (USUsed by Chinese people), Mobile (used by Europeans).