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in the PONS Dictionary

OS1 [ˌəʊˈes, Am ˌoʊˈ-] N

OS COMPUT abbreviation of operating system

OS
Betriebssystem nt <-s, -e>
See also

ˈop·er·at·ing sys·tem N, OS N COMPUT

operating system
Betriebssystem nt <-s, -e>

OS2 [ˌəʊˈes, Am ˌoʊˈ-] N Brit

OS abbreviation of Ordnance Survey

OS
amtliche Landesvermessung
See also

Ord·nance ˈSur·vey N, OS N Brit

Ordnance Survey
amtliche Landvermessung

ˈop·er·at·ing sys·tem N, OS N COMPUT

operating system
Betriebssystem nt <-s, -e>

Ord·nance ˈSur·vey N, OS N Brit

Ordnance Survey
amtliche Landvermessung

CATS-OS N

CATS-OS abbreviation of Citibank Automated Trading System FINMKT

CATS-OS (außerbörsliches Handelssystem der Citibank)
CATS-OS nt
CATS-OS (außerbörsliches Handelssystem der Citibank)
Citibank Automated Trading System nt
See also

Citibank Automated Trading System N FINMKT

Citibank Automated Trading System (außerbörsliches Handelssystem der Citibank)
Citibank Automated Trading System nt