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Data-modeling, business-process modeling - round trip engineering Prosa UML Modeller: Yes Yes Open modelbase Yes C++ Java, C#, SQL DDL and SQL queries C++ Java and C# class headers are synchronized between diagrams and code in real-time Programmer's workbenches, documentation tools, version control systems
Precursors to the web browser emerged in the form of hyperlinked applications during the mid and late 1980s, and following these, Tim Berners-Lee is credited with developing, in 1990, both the first web server, and the first web browser, called WorldWideWeb (no spaces) and later renamed Nexus. [2]
The PLATO system was launched in 1960 at the University of Illinois and subsequently commercially marketed by Control Data Corporation.It offered early forms of social media features with innovations such as Notes, PLATO's message-forum application; TERM-talk, its instant-messaging feature; Talkomatic, perhaps the first online chat room; News Report, a crowdsourced online newspaper, and blog ...
Facebook alleged it was "old data" from a problem fixed in August 2019 despite the data's having been released a year and a half later only in 2021; it declined to speak with journalists, had apparently not notified regulators, called the problem "unfixable", and said it would not be advising users. [245]
HTTP cookies (also called web cookies, Internet cookies, browser cookies, or simply cookies) are small blocks of data created by a web server while a user is browsing a website and placed on the user's computer or other device by the user's web browser. Cookies are placed on the device used to access a website, and more than one cookie may be ...
He presided over the first government budget to top the $100 billion mark, in 1962, and his first budget in 1961 resulted in the nation's first non-war, non-recession deficit. [320] The economy, which had been through two recessions in three years and was in one when Kennedy took office, accelerated notably throughout his administration.
The number π (/ p aɪ / ⓘ; spelled out as "pi") is a mathematical constant, approximately equal to 3.14159, that is the ratio of a circle's circumference to its diameter.It appears in many formulae across mathematics and physics, and some of these formulae are commonly used for defining π, to avoid relying on the definition of the length of a curve.
Being diprotic, carbonic acid has two acid dissociation constants, the first one for the dissociation into the bicarbonate (also called hydrogen carbonate) ion (HCO − 3): H 2 CO 3 ⇌ HCO − 3 + H + K a1 = 2.5 × 10 −4 mol/L; pK a1 = 3.6 at 25 °C. [19] This is the true first acid dissociation constant, defined as