Item Description

'The book introduces you to RPG programming language... book deals with the RPG that is available to users of IBM Sys 360, Univac 9200, RCA Spectra 70/25... and is upward compatible with higher-numbered models...'

Contents include Characteristics of Business Reports; First Look at RPG; Multiple-Card Layout Form and Printer Spacing; File Description Specifications; Input Specification Sheet; Output-Format Specifications Sheet; Calculation Spec Sheet;

Table Look-Up and the File Extension Spec Sheet; Processing More Than One Input and Output File; RPG Program Generation; Extending RPG to Magnetic Disk Files; Extending RPG to Magnetic Tape Files;

Basic Facts about Punched Cards, punched card equipment [hollerith code etc]; Components on the IBM System 360 model 20, CPU, multi-function card machine, printer etc; list of problems, list of exercises.

Includes linking files to I/O devices; min hardware configurations; punched card as a unit record; entries for columns; skipping indicators; group indication and printing multiple lines from one card, summary punching two output files;

Preparing the Source Deck; key punching entries, the Control Card, EOF Card, arranging the source deck for loading, etc; Generation Process how to interpret diagnostic messages, Programming errors that the Generator Deck cannot detect; Going Beyond Card RPG (magnetic disks), more. Early computers, punched cards, programming etc.