Operating systems manage computer resources from "summary" of Code by Charles Petzold
In the world of computers, an operating system plays a crucial role in managing various resources. When you turn on a computer, it's the operating system that takes charge and starts coordinating different components. From memory and processing power to input/output devices, the operating system is responsible for ensuring that everything works harmoniously. One of the primary functions of an operating system is to allocate memory to different programs. Without this allocation, programs would not be able to run smoothly or communicate with each other effectively. The operating system keeps track of which programs are using which parts of memory and ensures that each program gets the resources it needs to function properly. In addition to managing memory, the operating system also oversees the central processing unit (CPU). The CPU is like the brain of the computer, processing instructions and performing calculations. The operating system decides which programs get to use the CPU at any given time, prioritizing tasks based on their importance and ensuring that the computer runs efficiently. Input/output devices such as keyboards, mice, and printers also fall under the jurisdiction of the operating system. When you type on a keyboard or click a mouse, the operating system translates those actions into commands that programs can understand. Similarly, when you print a document, the operating system coordinates the communication between the program and the printer.- The operating system acts as a mediator between the hardware and software of a computer, ensuring that resources are utilized effectively and that programs can run smoothly. By managing memory, CPU usage, and input/output devices, the operating system plays a crucial role in the functioning of a computer system.
