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Whereas a barcode is a machine-readable optical image that contains information specific to the labelled item, the QR code contains the data for a locator, an identifier, and for web-tracking. To efficiently store data, QR codes use four standardized modes of encoding: (i) numeric, (ii) alphanumeric, (iii) byte or binary, and (iv) kanji. [4] Compared to standard UPC barcodes, the QR labelling ...
Login. In computer security, logging in (or logging on, signing in, or signing on) is the process by which an individual gains access to a computer system or program by identifying and authenticating themselves. The user credentials are typically some form of a username and a password, [1] and these credentials themselves are sometimes referred ...
The platform provides a hands-on learning experience, allowing users to write and execute code directly within their web browsers. Codecademy offers courses covering languages such as Python, JavaScript, HTML/CSS, and Ruby, as well as specialized topics like web development, data science, and machine learning.
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Peacock is an American over-the-top video streaming service owned and operated by Peacock TV LLC, a subsidiary of NBCUniversal Media Group. Named after the NBC logo, the service launched on July 15, 2020. [3] [4] [5] The service primarily features series and film content from NBCUniversal studios and other third-party content providers, including television series, films, news, and sports ...
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.
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