In this video, I show you how a computer starts all the programs necessary to allow user developed programs to run on the machine in Bangla for beginners and people of all skills and backgrounds. How computer environment create an environment which is versatile and allows running of multiple computer programs. Also, in the video I give you hints of the major steps in actually making a computer program. More details about the items discussed given below.
An operating system (OS) is a software program or set of programs that acts as an intermediary between computer hardware and software applications. It manages the hardware resources of the computer system, provides a platform for running software applications, and facilitates communication between the user and the computer. Overall, the operating system plays a crucial role in managing and coordinating the resources of a computer system, providing a stable and efficient environment for running software applications, and enabling users to interact with the system effectively.
The boot process, also known as bootstrapping, is the initial sequence of operations that a computer system performs when it is powered on or restarted. The boot process is responsible for loading the operating system (OS) into memory and preparing the system for user interaction and application execution. The boot process is essential for bringing a computer system from a powered-off or reset state into a fully functional state, ready to execute user applications and perform various tasks.
The kernel is the core component of an operating system (OS) that provides essential services and manages the hardware resources of the computer system. It acts as an intermediary between user applications and the hardware, facilitating communication and coordination between them. The kernel operates in a privileged mode and has full access to the hardware and system resources. It is responsible for enforcing system-wide policies, maintaining system stability, and ensuring the proper functioning of the operating system as a whole.
A desktop shell is a graphical user interface (GUI) that provides users with an interactive environment to interact with their computer's operating system and applications. It serves as the visual layer that users see and interact with when using their computers, allowing them to manage files, launch applications, access system settings, and perform other tasks. The desktop shell typically includes various graphical elements, such as icons, windows, menus, taskbars, and widgets, that provide visual cues and controls for navigating the operating system and launching applications. It also provides features such as window management, file management, desktop customization, and system notifications. The desktop shell plays a crucial role in providing users with a user-friendly and intuitive interface for interacting with their computer systems and applications. It serves as the primary point of interaction between users and the underlying operating system.
A source file, in the context of software development, refers to a file containing source code written in a programming language. Source files are the human-readable text files where programmers write instructions and logic to create software applications.
A compiler, assembler, and interpreter are software tools used in the process of translating source code into machine code or executable code that can be executed by a computer's processor.
A program or application, in the context of computing, refers to a set of instructions or software designed to perform a specific task or function on a computer or other electronic device. Programs are created by software developers to solve problems, automate tasks, manipulate data, and provide functionality to users. A program is also known as an executable file, is a file that contains machine code or instructions that a computer's operating system can execute directly. Executable files are the final output of the software development process, representing the compiled or interpreted form of a program written in a high-level programming language. This is the file a user can run on the computer and understood by the machine.
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