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  1. 5 天前 · The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the well-known ports.

  2. en.wikipedia.org › wiki › IPadiPad - Wikipedia

    2 天前 · The iPad is a brand of iOS and iPadOS-based tablet computers that are developed by Apple, first introduced on January 27, 2010.The iPad range consists of the original iPad lineup and the flagship products iPad Mini, iPad Air, and iPad Pro.The iPhone's iOS operating system (OS) was initially used for the iPad but in September 2019, its OS was switched to a fork of iOS called iPadOS that has ...

  3. en.wikipedia.org › wiki › M60_tankM60 tank - Wikipedia

    2 天前 · Maximum speed. 30 mph (48 km/h) (road) 12 mph (19 km/h) (cross country) [7] The M60 is an American second-generation main battle tank (MBT). It was officially standardized as the Tank, Combat, Full Tracked: 105-mm Gun, M60 in March 1959. [1] Although developed from the M48 Patton, the M60 tank series was never officially christened as a Patton ...

  4. en.wikipedia.org › wiki › 5G5G - Wikipedia

    2 天前 · Wireless network technologies. In telecommunications, 5G is the fifth-generation technology standard for cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the successor to 4G technology that provides connectivity to most current mobile phones. Like its predecessors, 5G networks are cellular networks, in ...

  5. en.wikipedia.org › wiki › HTMLHTML - Wikipedia

    4 天前 · HTML is a markup language that defines the structure and presentation of web pages. It is one of the core technologies of the World Wide Web, along with CSS and JavaScript. HTML allows creating and formatting text, images, links, tables, forms, and other elements on a web page. Learn more about the history, syntax, and features of HTML on Wikipedia.

  6. 2 天前 · The McDonnell Douglas F/A-18 Hornet is an all-weather supersonic, twin-engine, carrier -capable, multirole combat aircraft, designed as both a fighter and attack aircraft (hence the F/A designation ). Designed by McDonnell Douglas and Northrop, the F/A-18 was derived from the latter's YF-17 in the 1970s for use by the United States Navy and ...

  7. en.wikipedia.org › wiki › SunSun - Wikipedia

    1 天前 · The Sun consists mainly of the elements hydrogen and helium.At this time in the Sun's life, they account for 74.9% and 23.8%, respectively, of the mass of the Sun in the photosphere. All heavier elements, called metals in astronomy, account for less than 2% of the mass, with oxygen (roughly 1% of the Sun's mass), carbon (0.3%), neon (0.2%), and iron (0.2%) being the most abundant.