*Basics of cloud computing*
https://youtu.be/wtNA0csV95M

Cloud computing is the delivery of different services through the Internet. These resources include tools and applications like data storage, servers, databases, networking, and software.

Rather than keeping files on a proprietary hard drive or local storage device, cloud-based storage makes it possible to save them to a remote database. As long as an electronic device has access to the web, it has access to the data and the software programs to run it.

Cloud computing is a popular option for people and businesses for a number of reasons including cost savings, increased productivity, speed and efficiency, performance, and security.

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*MySql - Primary Key and Its Uses*
https://www.youtube.com/watch?v=fof6NODpBBs

A primary key is a column or a set of columns that uniquely identifies each row in the table. The primary key follows these rules:

- A primary key must contain unique values. If the primary key consists of multiple columns, the combination of values in these columns must be unique.
- A primary key column cannot have NULL values. Any attempt to insert or update NULL to primary key columns will result in an error. Note that MySQL implicitly adds a NOT NULL constraint to primary key columns.

- A table can have one an only one primary key.

Watch the video by Mr.Arun Prakash, Founder & CTO of GUVI to know more about Primary key in MySql and Its Uses.

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*Python - Installation of PyPi*
https://youtu.be/PNDN402anTk

The Python Package Index, abbreviated as PyPI and also known as the Cheese Shop (a reference to the Monty Python's Flying Circus sketch "Cheese Shop"),is the official third-party software repository for Python. It is analogous to CPAN, the repository for Perl. Some package managers, including pip, use PyPI as the default source for packages and their dependencies. Over 235,000 Python packages can be accessed through PyPI.

PyPI primarily hosts Python packages in the form of archives called sdists (source distributions) or precompiled "wheels."

PyPI is an index that allows users to search for packages by keywords or by filters against their metadata, such as free software license or compatibility with POSIX.[11] A single entry on PyPI is able to store, aside from just a package and its metadata, previous releases of the package, precompiled wheels (e.g. containing DLLs on Windows), as well as different forms for different operating systems and Python versions.

Watch the video by Mr.Arun Prakash, Founder & CTO of GUVI to know more about the Installation of PyPi in python.

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*JavaScript - Basics of Reserved Words*
https://youtu.be/mZrH0Mjqx6Q

In any programming language, a reserved word or a reserved identifier is a word that cannot be used as an identifier, such as the name of a variable, function, or label. Thus, it is reserved and cannot be used for defining any of these. This is a syntactic definition, and a reserved word may have no meaning.

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Do you want to become a Full Stack Developer? Are you not aware of what are the skills required? Then this video on our Zen Class Q&A session will help you.

In this video, Mr Arun Prakash, Founder & CEO - GUVI, will explain to you in detail about "How to become a Full Stack Developer? What are the skills required? Eligibility & everything about Full Stack Development".

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