For the sake of simplicity and clarity, frequently used names are abbreviated as follows:
- System parameters for the class 2 system parameters of BS2000 
- BS2000 operating system when BS2000 need not be distinguished according to version and configuration. 
With standard file names, <ver> stands for the internal name of the BS2000 version, e.g. 210 for BS2000 V21.0A.
In the examples the strings <date>, <time> and <version> specify the current outputs for date, time and version of a software product when the examples are otherwise independent of date, time and version.
The following typographical elements are used in this manual:
| 
 | Inputs in examples are shown in bold typewriter font | 
| 
 | DSECTS, compiler lists or outputs in examples are shown in typewriter font | 
| [ ] | Optional specifications in syntax definitions. The brackets are metacharacters and must not be entered in the statement. | 
| { | | } | Alternative specifications in syntax definitions. The available operands are separated by a horizontal bar. | 
| For notes on particularly important information | |
| This symbol designates special information that points out the possibility that data can be lost or that other serious damage may occur. | |
| [ ] | References to other publications within the text are given in abbreviated form. The full title of each publication referenced by a number is provided in full after the corresponding number in the “Related publications” section. |