Structured programming notes

The Sequential Control Structure is the simplest and most basic form of control structure in programming. In this structure, program statements are executed one after another in the exact order in which they appear, from the first statement to the last, without any branching or repetition.

Each statement is executed only once, and the flow of control moves step by step in a straight line. This type of control structure is used when the program logic does not require decision-making or looping.

Key Characteristics

• Execution follows a top-to-bottom order

• No conditions or loops are involved

• Easy to understand and implement

• Each statement is executed exactly once

Example Use

Sequential control structures are commonly used for:

• Reading input data

• Performing calculations

• Displaying results

Importance in Structured Programming

The sequential control structure forms the foundation of all programs. Even complex programs that include selection and iteration still rely on sequential execution within their blocks.