Editing GPSS (section)

{{Short description|Simulation system language}}
{{About|a programming language}}
{{Infobox programming language
| name = GPSS
| logo = GPSS sine-qua-non icon.png
| logo caption = 
| collapsible = <!-- to make screenshot collapsible -->
| screenshot = GPSS World in Use.png
| screenshot caption = A GPSS World simulation
| sampleCode = 
<syntaxhighlight lang="text">
GENERATE   15,5
SEIZE      Barber
ADVANCE    10,2
RELEASE    Barber
TERMINATE  1
</syntaxhighlight>

| paradigm = <!-- or: | paradigms = -->
| family = 
| designer = [[Geoffrey Gordon (computer scientist)|Geoffrey Gordon]]
| developer = [[IBM]]
| released = {{Start date and age|1961||}}
| latest release version = 
| latest release date = <!-- {{Start date and age|YYYY|MM|DD}} -->
| latest preview version = 
| latest preview date = <!-- {{Start date and age|YYYY|MM|DD}} -->
| typing = 
| memory management = 
| scope = 
| programming language = 
| discontinued = 
| platform = 
| operating system = 
| license = 
| file ext = .gps
| file format = <!-- or: | file formats = -->
| website = <!-- {{URL|www.example.com}} -->
| implementations = GPSS World, JGPSS
| dialects = 
| influenced by = 
| influenced = 
}}
'''General Purpose Simulation System''' ('''GPSS''') is a [[simulation language]] used for [[discrete-event simulation]]s. It is especially useful in the modelling of queuing systems, with many statistics being collected automatically.<ref name="Schriber Introduction to GPSS"/> The typical simulation consists of ''Transactions'' being generated in the system (usually at a certain interval), performing a defined set of rules (like use a resource, wait, transfer), and being removed from the simulation.