Chapter Thirteen
   Adding data persistence to programs
   History of Data Processing - Transactions Processing
   File Terminology Reviewed
   Introduction to File Maintenance
   Sequential Text Files – The basic building block of persistence
   Reading and Writing to Text Files
   Sequential Text file record Write File Processing (shaded in blue)
   Sequential Text file record Read File Processing (shaded in yellow)
   Real World:
   Traditional Sequential File Systems versus Databases
   Chapter Review