COMPUTER STUDY

  SGML is a standard for how to specify a document markup language or tag set, such a specification is itself a document type definition ( DTD ). SGML is not in itself a document language, but a description of how to specify one. It is metadata .

  Passkeys are a safer and easier alternative to passwords. With passkeys, users can sign in to apps and websites with a biometric sensor (such as a fingerprint or facial recognition), PIN, or pattern, freeing them from having to remember and manage passwords. Developers and users both hate passwords: they give a poor user experience, they add conversion friction, and they create security liability for both users and developers. Google Password Manager in Android and Chrome reduces the friction through autofill; for developers looking for even further improvements in conversion and security, passkeys and identity federation are the industry's modern approaches. by google.com

WWW World wide web which is also known as a web is a collection of websites or web pages stored in web servers and connected to local computers through the internet in another word worldwide web is a set of program standards to allow a user to access web pages governed by the protocols where you can create or access your website containing text images graphics audio and video for accessing files are creating you file for displaying on web though hyperlink supported by HTTP protocol.

1. Free web hosting service Offered by different companies with Limited services, sometimes supported by advertisements and open Limited when compared to pay hosting.  2. Shared web hosting services One's website is placed on the same server as many other sites, ranging from of few to hundred or thousands typically all domains may share a common pool of server resources such as Ram and the CPU the features available with the type of services can be quite basic and not flexible in terms of software and updates.  3. Reseller web hosting Allows client to become web host themselves. resellers could function, for individual domains, under any combination of these listed types of hosting, depending on who they are affiliated with as a reseller resellers Account may very preventively in size. They may have their own virtual dedicated server to a colocated server. 

1. Batch processing operating system       Process processing is the most primitive type of operating system. Batch processing generally requires the program, data, and appropriate system commands to be submitted together in the form of a job. Batch operating system usually allow little or no interaction between user and existing programs.

It is a cloud based instant messaging and wise over IP address development by Telegram messaging Telegram was launched in 2013 by the Russian pevel developer

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