Summary of I/O Concepts

Abstract

This chapter covers more formally some of the concepts introduced in Chaps. 9 and 10. There is a coverage of

• I/O concepts and I/O statements

• Files, records and streams

• Sequential, direct and stream access

• Options or specifiers on the open statement

• Options or specifiers on the close statement

• Options or specifiers on the write statement

• Options or specifiers on the read statement..

It is a capital mistake to theorise before one has data

Sir Arthur Conan Doyle