Data Processing

Data Processing

Made Simple

2nd Edition - January 1, 1976

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  • Author: Susan Wooldridge
  • eBook ISBN: 9781483105246

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Data Processing: Made Simple, Second Edition presents discussions of a number of trends and developments in the world of commercial data processing. The book covers the rapid growth of micro- and mini-computers for both home and office use; word processing and the 'automated office'; the advent of distributed data processing; and the continued growth of database-oriented systems. The text also discusses modern digital computers; fundamental computer concepts; information and data processing requirements of commercial organizations; and the historical perspective of the computer industry. The computer hardware and software and the development and implementation of a computer system are considered. The book tackles careers in data processing; the tasks carried out by the data processing department; and the way in which the data processing department fits in with the rest of the organization. The text concludes by examining some of the problems of running a data processing department, and by suggesting some possible solutions. Computer science students will find the book invaluable.

Table of Contents

  • Foreword

    Foreword to Second Edition

    Part One: Introduction to Data Processing

    1 Modern Digital Computers

    The Basic Units of a Computer

    Analogue versus Digital Computers

    Scientific versus Commercial Computers

    Manufacturers and Models

    2 Fundamental Computer Concepts

    Advantages and Disadvantages of Computers

    3 Computers in the Commercial Environment

    Private, Public, and Civil Service Organizations

    The Information Hierarchy

    The Processing Loop

    The Computer as an Aid to Information Processing

    4 Historical Perspective

    The Nineteenth Century

    Modern Pioneers

    The Second Generation

    The Third Generation

    The Fourth Generation

    Revision Questions

    Part Two: Computer Hardware and Software

    5 The Central Processor Unit

    Magnetic Core Memory

    Semiconductor Memories

    Magnetic Bubble Memories

    Memories of the Future

    Binary Notation

    Binary Coded Decimal and Hexadecimal

    Zone Bits and Parity Bits

    Words and Bytes

    Characteristics of Memory

    Representation of Instructions and Data in Memory

    Environmental Controls

    6 File Storage Devices

    Magnetic Tape

    Magnetic Tape Processing

    Direct Access Devices

    Direct Access Processing

    7 Input Devices

    Punched Cards

    Paper Tape

    Magnetic Tape Encoding

    Data Entry Systems

    Mark Sensing

    Optical Character Recognition

    Magnetic Ink Character Recognition

    Turnaround Documents

    By-Product Input

    Direct and Remote Data Entry

    8 Output Devices

    High-Speed Impact Line Printers

    Non-Impact Printers

    Laser Printers

    Graph Plotters

    Data Transmission


    Visual Display Units

    9 Microfilm

    Examples of Applications

    Advantages and Disadvantages of COM

    On-Line versus Off-Line

    The Technology of COM

    Format of Microfilm

    Film Processing and Duplication

    Viewing and Reproduction

    Graphics and Special Characters


    Indexing and Retrieval



    10 Programming Languages

    Types of Instructions

    Machine Language

    Assembler Languages


    High-Level Languages

    11 Software

    Application-Independent Software

    Applications Packages

    Miscellaneous Software

    Generalized File Processors

    Data Base Management Systems

    Who Supplies Software?

    Why Use Software?

    Revision Questions

    Part Three: Developing and Implementing a Computer System

    12 Planning

    The System Development Process

    Policy and Planning

    13 The Feasibility Study

    The User Request

    The Feasibility Study

    14 Information Gathering and Analysis

    Objectives and Scope of Information Gathering



    Data and Problem Analysis

    Problem Analysis

    Required Output for Design

    User Presentation and Authorizations

    15 System Design

    System Design Methodology


    The Input Subsystem

    The Computer Subsystem

    The Output Subsystem

    Documentation of the Design

    User Presentation and Authorizations

    16 Programming

    Design of the Program Structure




    Program Documentation

    17 Implementing the System

    System Testing

    The System Test Plan

    Test Files

    File Conversion

    User Training

    Procedure Manuals


    18 Maintenance

    Assignments and Responsibilities

    Types of Maintenance Work

    Revision Questions

    Part Four: Data Processing Today and in the Future

    19 The Role of Data Processing

    Job Definitions

    The Data Processing Department within the Organization

    Organization of Work within the Data Processing Department

    Types of Projects

    Special Characteristics of Data Processing Work

    20 Examples of Data Processing Applications

    Production Control System

    On-Line Sales Ledger System

    Information Retrieval System

    Real-Time Airline Seat Reservations System

    21 The Social Impact of Computerized Data Processing

    Automation and the Quality of Life

    The Privacy Issue

    Appendix. Suppliers and Services

    Associations, Institutes and Societies

    The Central Computer Agency

    The Post Office

    Recruitment Agencies

    Leasing and Broking Companies

    Consultants and Software Houses

    Service Bureaux

    Technical Publications

    Suggested Further Reading


Product details

  • No. of pages: 256
  • Language: English
  • Copyright: © Made Simple 1981
  • Published: January 1, 1976
  • Imprint: Made Simple
  • eBook ISBN: 9781483105246

About the Author

Susan Wooldridge

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  • Akanni a. Sat Jun 27 2020


    Very helpful but there are some adjustmentsadjustments that is needed to be made