[Oberon] Doubt from Project Oberon book.

[Srinivas Nayak]

Dear All,

 From the book, Project Oberon, I read,

2.2.2. Commands

    The parameter text must refer to objects that exist before command
    execution starts and are quite likely
    the result of a previous command interpretation. In most operating
    systems, these objects are files
    registered in the directory, and they act as interfaces between
    commands. The Oberon System broadens
    this notion; the links between consecutive commands are not
    restricted to files, but can be any global
    variable, because modules do not disappear from storage after
    command termination, as mentioned
    above.


What is the meaning?
I couldnt understand this.

Also I found that, this book uses technologies/terminologiesof 1980s 
which make things bit difficult to understand, for us who are used to 
with latest technologies/terminologies. Example, RAM/Memory is referred 
as "store".

With thanks and best regards,

Yours sincerely,
Srinivas Nayak

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Blog: http://srinivas-nayak.blogspot.in/