At the recent Microsoft Worldwide Partner Conference, Microsoft announced new hardware certification requirements for the upcoming Windows 8.1 update, including adding Bluetooth to the wireless device, and the video footage meeting the 720P resolution or better. Good microphones, but also hardware authentication such as NFC, TPM, and fingerprint readers.
According to Microsoft's recent update, the hardware certification for Windows 8.1 was announced at the recently held Global Partner Conference. It will join the UART serial port, fingerprint reader, WDDM 1.3-compliant graphics card, and SATA-based hybrid hard disk. , NFC, more accurate touch panels, and adding 802.11ac specifications in the Wi-Fi connection function, in addition to support for the new ARM architecture processor for Windows RT 8.1.
In addition, Windows 8.1 hardware certification also incorporates new Bluetooth technology, longer battery life, and adds more accurate microphones and sound reinforcement devices. It also incorporates 720P video footage into the specification, and these hardware specifications will Increased requirements for computer products shipped since January 2014. In addition, Windows 8.1 hardware certification will also be incorporated into the TPM 2.0 security chip module, but it is expected that the specification will be strengthened in January 2015.
Currently Microsoft will release Windows 8.1 updates for all Windows 8 users by the end of the year. It is also expected to provide OEMs with Windows 8.1 RTM version in August and prepare to use hardware products with Windows 8.1 operating system in September and October this year. Shipped one after another.
Dichloromethane (DCM) is a multifunctional and powerful chloride solvent known for its high solubility. As a solvent, it is often used for coating removal, metal cleaning and polishing; It can also be used as a processing solvent in the production of drugs, polycarbonate, cellulose ester and photographic film, and as an extraction medium for aerosol propellant and food processing. Other uses include adhesives, cosmetics, plastic processing and foaming. Dichloromethane has many characteristics such as super solubility, low flammability, high cost efficiency, recyclability and rapid evaporation. Therefore, it has long been the preferred solvent for a variety of applications, mainly in polyurethane foam blowing, metal cleaner, adhesive, paint stripper and pharmaceuticals.
Dichloromethane is a widely used organic solvent, which is slightly soluble in water, easily soluble in ether and ethanol, and volatile at room temperature. It can cause poisoning if used carelessly. Many commonly used reagents contain dichloromethane, such as various paints, coatings, furniture polish and cleaner, hair styling agent, household air cleaner, deodorant, leather shoe polish and cleaner, etc.
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