Computer History Notes - Herong's Tutorial Notes - v3.13, by Herong Yang
Storing FORTRAN Program Code on Punch Cards
This section provides a quick introduction of syntax rules of early versions of FORTRAN language related to punch cards used to store FORTRAN program codes.
Programs written in early versions of FORTRAN language must follow special rules that were related the punch cards used to store program codes in the early days:
Here is a sample code of an early version of FORTRAN LANGUAGE:
C---- THIS PROGRAM READS INPUT FROM THE CARD READER, C---- 3 INTEGERS IN EACH CARD, CALCULATE AND OUTPUT C---- THE SUM OF THEM. 100 READ(5,10) I1, I2, I3 10 FORMAT(3I5) IF (I1.EQ.0 .AND. I2.EQ.0 .AND. I3.EQ.0) GOTO 200 ISUM = I1 + I2 + I3 WRITE(6,20) I1, I2, I3, ISUM 20 FORMAT(7HSUM OF , I5, 2H, , I5, 5H AND , I5, * 4H IS , I6) GOTO 100 200 STOP END
The picture below shows a punch card representing one line of a FORTRAN program (Source: www.wikipedia.org):
Table of Contents
2002 - .NET Framework Developed by Microsoft
1995 - PHP: Hypertext Preprocessor Created by Rasmus Lerdorf
1995 - Java Language Developed by Sun Microsystems
1991 - WWW (World Wide Web) Developed by Tim Berners-Lee
1991 - Gopher Protocol Created by a University of Minnesota Team
1984 - X Window System Developed a MIT Team
1984 - Macintosh Developed by Apple Inc.
1983 - "Sendmail" Mail Transfer Agent Developed by Eric Allman
1979 - The Tcsh (TENEX C Shell) Developed by Ken Greer
1978 - Bash (Bourne-Again Shell) Developed by Brian Fox
1978 - The C Shell Developed by Bill Joy
1977 - The Bourne Shell Developed by Stephen Bourne
1977 - Apple II Designed by Steve Jobs and Steve Wozniak
1976 - vi Text Editor Developed by Bill Joy
1974 - Internet by Vinton Cerf
1972 - C Language Developed by Dennis Ritchie
1971 - FTP Protocol Created by Abhay Bhushan
1970 - UNIX Operating System Developed by AT&T Bell Labs
►1957 - FORTRAN Language Developed by IBM
►Storing FORTRAN Program Code on Punch Cards
FORTRAN 66 - Example Program Code
FORTRAN 77 - Example Program Code
g77 - GNU Project FORTRAN Compiler