Hardware and software work together to execute programs from "summary" of Code by Charles Petzold
To understand how a computer program runs, it is essential to grasp the intricate interplay between hardware and software. Hardware refers to the physical components of a computer system, such as the processor, memory, and input/output devices. Software, on the other hand, comprises the programs that instruct the hardware on what to do. When you run a program on a computer, the software is loaded into memory, which is a temporary storage area on the computer's hardware. The processor, also known as the CPU, is the brain of the computer that carries out the instructions provided by the software. It executes these instructions by fetching them from memory, decoding them, and then executing them. The software is written in a language that is understandable to humans, such as C++ or Python. However, the CPU can only understand machine language, which is a binary code consisting of 0s and 1s. Therefore, the software must ...
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