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Computer Programming: Algorithms, Programs, and Software Life Cycle

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Presentation Transcript

  1. Computer Programming

  2. Objectives Program and Programming Algorithms & Programs Software Life Cycle

  3. Program and Programming

  4. Program and Programming • Program: • A set of instruction written in a programming language that a computer can execute so that the machine acts in a predetermined way. • Program solves a problem • Before writing a program: • Have a thorough understanding of the problem • Carefully plan an approach for solving it. • Programming: • The Process of providing instructions to the computer that tells the processor what to do.

  5. Algorithms and Programs

  6. Algorithms and Programs • An Algorithm is a solution to a problem that is independent of any programming language.While • A program is an algorithm expressed using a specific set of instructions from any programming language.

  7. Algorithm Example • Maximum of two numbers • Steps: • Read/input two numbers • Compare two numbers • Print the Greater number • Average of three numbers • Steps: • Read/input three numbers • Add three numbers • divide the sum by 3. • Print the result of divison

  8. Software Life Cycle

  9. What How Do it Test Use Software Life Cycle Requirements Gathering, Problem definition Analysis and Design (Programming techniques) Coding Testing Implementation and Maintenance

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