Program execution.
The system must be able to load a program into memory and to run that program. The program must be able to end its execution, either normally or abnormally (indicating error).
Program execution refers to the process of running a computer program or software application. The process starts when the user initiates the program or the operating system loads it into memory. The program is then launched, and its executable code is executed by the central processing unit (CPU) of the computer.
The program’s instructions are loaded into the computer’s memory (RAM) and are processed by the CPU in order, following the flow of control structures such as conditional statements, loops, and function calls. As the CPU executes each instruction, it stores intermediate results in registers or memory locations, and continues processing instructions until the program has completed its task.
During program execution, the computer’s operating system allocates and manages system resources such as memory, input/output devices, and network connections. The program may also interact with user input, displaying output on a screen or responding to input from a keyboard or mouse.
The execution of a program ends when it either completes its task, exits normally, or an error occurs, such as a segmentation fault or a system crash.
Overall, program execution is a complex process that is crucial to the functioning of most modern computer systems. Understanding it is important for anyone interested in computer science or software development.
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