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COBOL (COmmon Business-Oriented Language) is a high-level programming language that was specifically designed for business applications in the 1950s. It is one of the oldest programming languages still in use today. COBOL was created to handle large-scale data processing, such as those required in banking, retail, and administrative systems.

Git is a distributed version control system commonly used for software development. It allows multiple developers to work on a project simultaneously, tracking changes made to the files and allowing collaboration and coordination among team members. Git records the history of changes, enables branching and merging of code, facilitates reverting to previous versions, and provides a platform for managing and sharing code across different repositories. It is an essential tool for version control and popular among developers for its speed, flexibility, and robustness.

TensorFlow is an open-source software library developed by Google that is used to build and train artificial neural networks and other machine learning models. It provides a flexible platform for building and deploying machine learning algorithms across a range of applications, from image and speech recognition to natural language processing and predictive analytics.

MongoDB is a free and open-source cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with optional schemas. MongoDB is developed by MongoDB Inc.

Apache Cassandra is a free and open-source distributed database management system designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure. Cassandra offers robust support for clusters spanning multiple data centers, with asynchronous masterless replication allowing low-latency operations for all clients.

Artificial Intelligence is defined as a branch of computer science focusing on making computers mimic human-like behaviors. John McCarthy first introduced artificial Intelligence in 1956 for the Dartmouth conference, which helped engineers develop logical reasoning and knowledge engineering capabilities. AI has been around since the 1950s but only gained popularity in the last few years, with massive investments from Google and others.

Oracle databases are collections of data that are handled as a single entity. A database is used to store and retrieve relevant data. A database server is critical to resolving information management issues. In general, a server maintains a huge volume of data reliably in a multiuser context, allowing several users to access the same data simultaneously. All of this is achieved while maintaining an exceptional level of performance. Additionally, a database server protects against unauthorized access and offers rapid recovery options in the case of a failure. This Database is the first of its kind developed specifically for corporate grid computing, the most versatile and cost-effective method of managing data and applications.

Selenium is a revolutionary web application testing tool. The open-source framework has automated the process of testing web applications. Functional tests can be performed without the need to use a scripting language to perform tests. It has a domain language called Selenese that is used for writing tests in a wide range of programming languages including Python, Java, Perl, C# and, Groovy. The open-source software under Apache License 2.0 runs on macOS, Linux and, Windows. The tool was developed in the year 2004 by Jason Huggins.

Haskell makes the task that is normally difficult and expensive a little less daunting. Functional programming like Haskell is the less expensive alternative to other programs. Even with large projects, Haskell makes them have fewer mistakes and makes the process smoother. It provides polymorphic typing and a lazy evaluation and high order functions. Haskell is a functional coding language. It is used for programming.

One of the most popular web server software packages in the world is called Apache. Most of us use it every day, but many don't even realize they're using it. It's an open-source web server software package that is free to download and use, so anyone can set up their own website using it.