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Further reading □ Introduction □ A. System overview □ B. Program execution □ C. Filestore □ D. GEORGE commands □ E. Introduction to Multiple On-line Programming (MOP) □ F. Input of background jobs □ G. Editing files □ I. Budgeting, scheduling and accounting □ J. Monitoring files □ L. FORTRAN □ M. ALGOL □ N. Assemblers PLASYD, PLAN □ P. Consolidator □ Q. Libraries □ R. Data storage □ Sections S-Z unavailable □ S. Large program organisation □ T. User utilities □ V. Graphics packages □ W. Other packages □ X. Efficient use of the 1906A □ Y. 1906A hardware □ Z. Peripheral equipment □ List of reference manuals □ Index
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⟶ ACL ⟶ Literature ⟶ ICL 1906A manuals ⟶ 1906A Reference Manual
⟶ ACL ⟶ Literature ⟶ ICL 1906A manuals ⟶ 1906A Reference Manual
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Further reading ⇓

□ Introduction □ A. System overview □ B. Program execution □ C. Filestore □ D. GEORGE commands □ E. Introduction to Multiple On-line Programming (MOP) □ F. Input of background jobs □ G. Editing files □ I. Budgeting, scheduling and accounting □ J. Monitoring files □ L. FORTRAN □ M. ALGOL □ N. Assemblers PLASYD, PLAN □ P. Consolidator □ Q. Libraries □ R. Data storage
Sections S-Z unavailable
□ S. Large program organisation □ T. User utilities □ V. Graphics packages □ W. Other packages □ X. Efficient use of the 1906A □ Y. 1906A hardware □ Z. Peripheral equipment □ List of reference manuals □ Index

1906A Reference Manual

As its name implies, the main purpose of this Manual is as a reference document. The aim is that this Manual, together with other Atlas Computer Laboratory (ACL) publications, should be sufficient documentation for most of the users of the ICL 1906A. A user should only need to consult the standard ICL documentation for the more exotic features of the software and hardware. To some extent, this Manual gives a simplified view of the software on the 1906A. Features which are inefficient or little used have not been mentioned. ACL have made many changes to the 1906A software and it should therefore be emphasised that this Manual only applies to ACL's 1906A. Many of the features described here may be slightly different on another 1906A, or may not exist at all.

The terminology used here differs to some extent from that used by ICL. This is partly because of the rather verbose forms used by ICL and partly because of the simplified view given here. The convention has been adopted that all syntactic names consist of single lower case words. Readers should note the way in which the two words should and must are used. If must is used, then the statement applies to the 1906A software in general. If should is used, this implies that the statement should be treated as must unless the user knows what he is doing. The statement is ignored at his own risk.

The Manual has been divided into a number of Parts which concentrate on a single aspect of the total system. It is envisaged that most users will need to refer to the earlier Parts, while the later ones concentrate on specific aspects. A user should be in a position to run a program on the 1906A once he has read Parts A, B, and either E or F. The operating system on the 1906A is very file-oriented and, therefore, readers are recommended to read Part C. A complete list of the GEORGE commands needed is given in Part D. It is envisaged that this Part will be needed as a reference if the jobs to be run are at all complex.

Cross-references in the Manual are normally enclosed in brackets and have a form similar to P.3.5. The initial letter defines the Part while the numbers define the chapter and section.

Any queries concerning the 1906A should, in the first instance, be made to the Program Advisory Office of the Resource Management Branch at ACL.

This Manual was produced by the Basic Software Group at the Atlas Computer Laboratory (except for Part W which was provided by the Applications Software Group). The main contributors, in alphabetical order, were:

The manual was quite large; in consequence it was split into three volumes (A-J, L-R and S-Z). The letters H, K, O and U have not been used.

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