Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 200 views

    Lesson 1 Programming

    Uploaded by

    Nelson Picones
    This document provides an introduction to computer programming. It discusses the input-process-output approach used in systems to transform input data into output. Input refers to entered data, process is any procedures performed, and output is the resulting outcome. The document also defines computer programs, programming, and programmers. It classifies programming languages and discusses the software development life cycle.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd

    Lesson 1 Programming

    Uploaded by

    Nelson Picones
    200 views9 pages
    This document provides an introduction to computer programming. It discusses the input-process-output approach used in systems to transform input data into output. Input refers to entered data, process is any procedures performed, and output is the resulting outcome. The document also defines computer programs, programming, and programmers. It classifies programming languages and discusses the software development life cycle.

    Original Description:

    Lesson 1 Programming

    Copyright

    © © All Rights Reserved

    Available Formats

    PPTX, PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    This document provides an introduction to computer programming. It discusses the input-process-output approach used in systems to transform input data into output. Input refers to entered data, process is any procedures performed, and output is the resulting outcome. The document also defines computer programs, programming, and programmers. It classifies programming languages and discusses the software development life cycle.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    200 views9 pages

    Lesson 1 Programming

    Uploaded by

    Nelson Picones
    This document provides an introduction to computer programming. It discusses the input-process-output approach used in systems to transform input data into output. Input refers to entered data, process is any procedures performed, and output is the resulting outcome. The document also defines computer programs, programming, and programmers. It classifies programming languages and discusses the software development life cycle.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    You are on page 1of 9

    Lesson 1: Introduction to

    Computer Programming

    The Input-Process-Output (IPO) Approach


    The Input-Process-Output (IPO) is a pattern or
    approach that is widely used in systems for
    transforming input data into output. This is used
    to describe the structure of process.
    Input- is any data entered into the computer
    system. It could be resources such as people,
    item details, or finance that are entered into
    the system to obtain a desired output.

    Process- a procedure being taken to provide


    an output.

    Output- serves as the outcome of the process.


    It also meets the goal or end result of the
    entire procedure.
    Point-of-Sale (POS)
    • System that is commonly used in a grocery or
    a department store, checkout counter, identify
    the information needed, information to be
    processed, and expected outcome of the
    system.
    Computer Program
    • Is a series of instructions written to perform a specified task
    on a computer.

    Programming- the art and science of creating programs

    Programmer- the person who write, develops and debugs a


    computer program.

    Programming language- a tool that is used by the


    programmer to communicate with the computer. It allows
    programmers to write commands or instructions that can be
    easily understood by a person and translated into codes that
    are machibe-readable.
    Classification of Programming
    Language
    1. The machine language- a computer is an electronic
    machine; it can only feel electricity and is designed to
    work with information
    • Binary language/machine language- the only language
    that can be used in the computer, uses only 2 numbers,
    1 and 0.
     Binary numeral system- represents and processes
    numbers using binary digits 0 and 1 which represented
    by ‘on’ and ‘off’. This has 2 as a base.
     Decimal numeral system- represents numbers
    understood by humans and it is composed of 0 to 9.
    this number has 10 as a base.
    2. The Assembly Language
    • More advanced than the machine language as
    it uses mnemonics in place of machine codes
    to simplify the programmer’s way of creating
    programs.
    Mnemonics- are memory aids. It uses English
    like abbreviation.
    Assembler- the program that requires another
    program to translate mnemonics into machine
    code.
    3. The High-level Language
    • Allow programmers to use English commands to carry out
    instructions.
     Interpreter- translates high-level instructions line by line
    into machine code during runtime.
     Compiler- translates the entire program into machine code
    before the program executes.
     Object-oriented programming language- is a high-level
    programming language that uses GUI-based interfaces
     Object-oriented programming (OOP) and event driven
    programming languages- with these languages, the
    emphasis of creating a program was on the objects
    included in the user interface like buttons and scrollbars.
    Software Development Life Cycle
    (SDLC)
    • The process used in creating computer
    systems. It consists of a detailed plan
    describing how to develop and maintain
    systems.
    Stages in Software Development
    • requirements-
    • Planning/Design
    • Implementation
    • Testing and Debugging
    • Deployment
    • Support and Maintenance

    You might also like