What is the difference between Centrino technology and Bluetooth technology? Thank you

Centrino technology refers to CPU technology, which is mainly used in notebooks. Bluetooth technology is a technology used for wireless transmission, the effective distance is relatively short, but the speed is also convenient.

Bluetooth technology is an open standard for wireless data and voice communication that builds on low-cost short-range wireless connectivity to create a special connection for fixed and mobile device communication environments. If Bluetooth technology is introduced to mobile** and portable computers, it is possible to remove the annoying connection cable between mobile** and portable computers and make communication wireless. Printers, PDIs, desktop computers, fax machines, keyboards, game joysticks, and all other digital devices can be part of the Bluetooth technology system.

In addition to this, Bluetooth wireless technology provides a common interface to existing digital networks and peripherals to form a group of personal, specialized, connected devices that are far from fixed networks.

Centrino technology. Simply put, the processor automatically adjusts the frequency according to the need.

The brand name of the wireless mobile computing technology launched by the laptop. Centrino is an abbreviation for the words Centre and Neutrino.

It consists of three parts: a mobile processor (CPU), an associated chipset, and a wireless network function module. The Centrino brand is the first time that Intel has named a series of technologies under one name.

Intel's "Centrino" mobile computing technology is an innovative technology used in the new generation of laptops. Laptops equipped with this technology will enable users to get rid of the constraints of cables and truly work, study, relax, and surf the Internet on the move. And while increasing the battery life, the notebook will also become light and thin.

This innovative technology not only brings new performance and low power consumption to notebook systems, but also integrates wireless communication and security features into the native chip. From the perspective of product entity, Centrino mobile technology consists of three parts, which are mobile CPU, chipset and wireless LAN chip.

1.The difference between Bluetooth and wifi is one:

1. Bluetooth, also known as Bluetooth in the early days, is an emerging wireless communication technology is a standard wireless communication protocol, based on the transceiver chip of low-cost equipment, short-distance transmission, low power consumption. It is widely used in IoT smart home systems and smart wearable devices. Shengrun Technology is a company specializing in the research and development of solutions for Bluetooth Low Energy.

2. Wi-Fi is an industry standard for wireless network communication defined by IEEE, which is a wireless network, and his scope in the LAN refers to "wireless compatibility certification", which is actually a commercial certification, and it is also a wireless networking technology.

The difference between Bluetooth and wifi is two:

1. Bluetooth uses frequency hopping and spectrum expansion, generally 1650 times per second, dividing the frequency band to 79 frequency band channels, and each moment only accounts for 1MHz of bandwidth. The modulation mode is GFSK, the classic Bluetooth is a wireless communication that can carry out data and voice at the same time, and the Bluetooth transmission bandwidth is 1Mbps, his communication distance is generally 10 meters, and the latest version launched in May 2016 The transmission distance can reach 150 meters. Bluetooth communication is mainly used to connect some external electronic devices, or short-distance data transmission.

2. The connection protocol used by WiFi is the LAN protocol, the transmission range of WiFi is 120 meters, the transmission speed can reach up to 11Mbps, the use of straight sequence spread spectrum and QPSK or BPSK, and the upper and lower bandwidth is 22MHz. It can mainly provide wireless Internet access services, so WiFi often appears on smart devices that need to be networked.

What is WiFi?

Bluetooth requires device matching and can only be connected point-to-point; WiFi is equivalent to wireless routing, which can achieve one-to-many connections.

Centrino and non-Centrino are actually just a concept hype from Intel, in the actual application of the Centrino technology laptop battery use a little longer than the non-Centrino technology notebook use a little longer (and only a little longer), basically do not feel the difference, if it is just for home use, non-Centrino notebook can fully meet your needs.

The core points of Centrino are: wireless Internet access and power saving. In fact, it is a notebook that integrates a wifi module and can access the Internet wirelessly. Non-Centrino may not have a wireless module, while Centrino certainly does.

Centrino is actually a combination, each generation of Centrino has a specific CPU, wireless network card and chipset to compose, Centrino platform has certain benefits, low power consumption, so that the battery is used for a long time, the function is better, now out of Centrino 3, that is, the sixth generation of Centrino, in fact, buy a notebook, mainly depends on your personal needs, these technologies do not matter much.

Simply put, mobile storage technology, the difference between Gen 1 and Gen 2 is access speed and capacity, and of course, service life.

According to the landlord's statement, I thought about it, and the landlord should have encountered a different generation of Centrino. Intel's plan to update the notebook is like this, first release a complete set of platforms, and then release the next generation of notebook processors after half a year, but the platform is still this generation, which is the so-called 1 and a half generations. Since the landlord said that they are all Core 2, that is the Centrino generation and the Centrino 4 generation, which is replaced by the platform of Centrino 3, but the processor of Centrino 4.

The difference between the two is the motherboard and the front-side bus, as well as the network protocol

The difference between T5250 and T5300 is that T5250 is a shrunken version of T7100, in fact, T5300 is also a shrunken version, but its market response is not ideal, so Intel launched 5250, and their performance gap is about 15% But objectively, the T5250 processor is also very strong

【Introduction】 First of all, let's take a look at the well-known "Centrino mobile computing technology". As early as March 2003, Intel officially released the technology. It does not rely solely on a single processor, chipset, etc., but represents a complete set of mobile computing solutions.

Page 2: The 2nd Gen Centrino: Graphics performance is the most significant improvement.

On January 9, 2005, Intel said that it would officially release the second-generation Centrino mobile platform, Sonoma. The latest Sonoma mobile platform consists of a next-generation Pentium-M processor (codenamed DOTHAN M-series motherboard chipset with ICH5 Southbridge) (codenamed Alviso) and a dual-band wireless adapter (codenamed Calexico2 with GHZ IEEE A B G form factor support). Other technologies such as SATA hard drives, DDR2 533 memory, and Intel2200BG wireless network cards are also advanced features of this platform.

Another important role in the Sonoma platform is the Intel915 chipset paired with Dothan, codenamed Alviso, which includes 915GM, 915PM and 915GML, which are released for different consumer groups. Among them, the 915GM built-in graphics chip integrates the ability to support graphics cards and PCI Express x16 buses; 915pm does not have a built-in display chip, it can be matched with an independent display chip, and the others are the same as 915gm; The 915GL can be seen as a simplified version of the 915GM, which only supports the 400MHz front-side bus, and does not have PCI Express X16 support to make it impossible to use an external graphics card, nor does it support the Enhanced Speedstep feature.

Intel said that the Sonoma platform will support the PCI Express X16 graphics card interface, and the 915PM GM chipset can install more powerful form-shifting cards designed specifically for this platform by ATI and NVIDIA, including replaceable Axiom and MXM graphics modules.

Among the notebooks with 915GM built-in graphics chips, the performance of the built-in graphics card should be the greatest joy brought to us by the Sonoma platform. By testing some Centrino laptops with 3DMark2001, we can see that the test score of 915GM has almost doubled. Although it does not reach the rumored level of the ATI Radeon 9000, it is still a very big improvement over the previous generation 855GME chipset.

The chip is more advanced! Hyper-threading only! That's all!

Centrino 2 is an upgrade from Centrino. CPU + chipset + wireless network card are all upgraded, new architecture, new process, new technology.

To put it simply, Centrino technology is a horse + carriage + coachman;

Centrino 2 is a handsome horse + handsome carriage + handsome coachman.

It's an upgraded version, a whole new name and a new image, and then flickering.