A Guide to IBM 1401 Programming |
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Page 47
... programs that are very difficult to correct and to modify . For these reasons almost all programming is done with a symbolic programming sys- tem . For the 1401 system there are three rather similar symbolic programming sys- tems ...
... programs that are very difficult to correct and to modify . For these reasons almost all programming is done with a symbolic programming sys- tem . For the 1401 system there are three rather similar symbolic programming sys- tems ...
Page 48
Daniel D. McCracken. 1401 Symbolic Programming System Date 27 28 Figure 4.1 . Example of a Symbolic Programming System ( SPS ) program . Four cards are read , after which the rounded sum of one field from each card is printed . Figure ...
Daniel D. McCracken. 1401 Symbolic Programming System Date 27 28 Figure 4.1 . Example of a Symbolic Programming System ( SPS ) program . Four cards are read , after which the rounded sum of one field from each card is printed . Figure ...
Page 199
... computer , 75 Subroutine , 100 , 160 Subtract instruction , 44 Summarization , 2 Summary line , 94 Switch , program , 77 , 116 , 117 Symbolic address , 47 Symbolic instruction , 52 Symbolic Programming System , 47 , 52 , 101 , 151 , 154 , ...
... computer , 75 Subroutine , 100 , 160 Subtract instruction , 44 Summarization , 2 Summary line , 94 Switch , program , 77 , 116 , 117 Symbolic address , 47 Symbolic instruction , 52 Symbolic Programming System , 47 , 52 , 101 , 151 , 154 , ...
Contents
The Nature of Data Processing | 1 |
Introduction to Computing Equip | 13 |
Branching | 62 |
Copyright | |
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Common terms and phrases
A-address application Autocoder B-address register B-field blank block diagram Branch If Indicator carriage central processing unit CHAR character position Clear Storage COBOL columns contains core storage d-character data processing deck digits disk storage district error example executed field flow chart FORMAT Mnemonic FORTRAN group mark Halt high-order position index register instruction inventory invoice last card LINE COUNT loop machine magnetic tape master file master record Move Characters multiply object program Op Code OPERAND ADDRESS operation code picking sequence print area print storage printer procedure processor product number punched cards Read a card REVIEW QUESTIONS routine sales cards salesman shown in Figure source program space specified stacker stored struction subroutine summary symbolic programming Symbolic Programming System tape mark tape unit tion track unit price Write Disk written zero zero suppression zone bits