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Wireless LAN (WLAN) channels are frequently accessed using IEEE 802.11 protocols. The 802.11 standard provides several radio frequency bands for use in Wi-Fi communications, each divided into a multitude of channels numbered at 5 MHz spacing (except in the 45/60 GHz band, where they are 0.54/1.08/2.16 GHz apart) between the centre frequency of the channel.
The iPhone [10] (retroactively referred to as the iPhone 2G, [11] iPhone 1, [12] or original iPhone [11]) is the first iPhone model and the first smartphone designed, developed, and marketed by Apple Inc. After years of rumors and speculation, it was officially announced on January 9, 2007, [13] and was released in the United States on June 29 ...
Wikipedia is written by volunteer editors and hosted by the Wikimedia Foundation, a non-profit organization that also hosts a range of other volunteer projects : Commons. Free media repository. MediaWiki. Wiki software development. Meta-Wiki. Wikimedia project coordination. Wikibooks. Free textbooks and manuals.
Barry Bonds holds the Major League Baseball home run record with 762. [a] He passed Hank Aaron, who hit 755, on August 7, 2007. The only other players to have hit 700 or more are Babe Ruth with 714, and Albert Pujols with 703. Alex Rodriguez (696), Willie Mays (660), Ken Griffey Jr. (630), Jim Thome (612), and Sammy Sosa (609) are the only ...
ISO 3166-1 ( Codes for the representation of names of countries and their subdivisions – Part 1: Country codes) is a standard defining codes for the names of countries, dependent territories, and special areas of geographical interest. It is the first part of the ISO 3166 standard published by the International Organization for Standardization .
The IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 [1] which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical enclosures ...
NATO in 2024 NATO (North Atlantic Treaty Organization) is an international military alliance consisting of 32 member states from Europe and North America.It was established at the signing of the North Atlantic Treaty on 4 April 1949.Article 5 of the treaty states that if an armed attack occurs against one of the member states, it shall be considered an attack against all members, and other ...
