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Unit-1 Java Fundamental

1.1 Introduction to Java Java is a high-level, object-oriented, general-purpose programming language developed by Sun Microsystems. It is simple, efficient, and platform-independent. Java was originally designed for embedded network applications running on multiple platforms. It is a portable, object-oriented, and interpreted language.  History of Java James Gosling (known as the Father of Java), Mike Sheridan, and Patrick Naughton initiated the Java language project in June 1991. This small team of Sun Microsystems engineers was called the Green Team . Initially, Java was designed for small embedded systems and electronic appliances such as set-top boxes. The language was first called Greentalk by James Gosling, and its file extension was .gt . Later, it was renamed Oak and was developed as part of the Green Project. The oak tree symbolizes strength and is the national tree of several countries, including the United States, France, Germany, and Romania. In 1995, Oak was renamed ...
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Introduction to Software Engineering (Class 12)

 Introduction to Software Engineering Software engineering is the branch of computer science that deals with the design, development, testing, and maintenance of software applications. Software engineers apply engineering principles and knowledge of programming languages to build software solutions for end users. IEEE, in its standard 610.12-1990, defines software engineering as the application of a systematic, disciplined, which is a computable approach for the development, operation, and maintenance of software. Boehm defines software engineering, which involves, ‘the practical application of scientific knowledge to the creative design and building of computer programs. It also includes associated documentation needed for developing, operating, and maintaining them.’ Importance of Software Engineering Reduces complexity Large software systems are divided into smaller, manageable modules. Each module is developed and solved independently, ...
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Unit 1 Introduction to operating System (CLASS 11)

Introduce Operating System An Operating System (OS) is system software that acts as an interface between the computer hardware and the user. It manages computer resources and provides services for programs to run efficiently. Examples of popular operating systems include: Microsoft Windows Linux macOS Android iOS   Function of OS 1. Process Management The operating system helps in running many programs at the same time. It keeps track of each running program (called a process), decides which one should run next, and stops or starts them as needed. It makes sure that all the programs get a fair chance to use the CPU.   2. Memory Management The OS manages the computer's memory (RAM). It decides which program will use how much memory and keeps track of it. When a program is closed, it frees up the memory so that other programs can use it. This helps the computer run smoothly without crashing.   3. File System Management The operating system helps us to creat...
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Unit-1 Introduction to C#.NET (Class 12)

  What is .NET Framework? The .NET Framework is a software development platform developed by Microsoft. It provides tools and libraries to build and run Windows applications, web services, and web apps. It gives tools and libraries that make it easier to write programs. It also helps the computer run those programs safely and efficiently. Microsoft started working on .NET Framework in the late 1990s . The first version, .NET Framework 1.0 , was released in 2002 .   The .NET Framework is made up of several important components: 1.       Common Language Runtime (CLR) is the core engine that runs your program. It converts your code into machine code that the computer can understand, manages memory, handles errors, and ensures that your program runs safely. 2.       The Class Library is a large collection of ready-made code that helps you perform common tasks like working with files, databases, graphics, the i...
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