käyttöjärjestelmillään

käyttöjärjestelmillään is a Finnish word that translates to "with their operating systems" or "using their operating systems." It is the adessive plural form of the word käyttöjärjestelmä, which means "operating system." The adessive case in Finnish is used to indicate the means or instrument by which something is done, similar to the preposition "with" in English. Therefore, käyttöjärjestelmillään implies that something is being accomplished or performed using or by means of operating systems.

This term is commonly encountered in technical contexts, particularly when discussing computers, software, or digital devices. For example, a sentence might state that a company is developing new software applications for its users, and the phrase käyttöjärjestelmillään would be used to specify that these applications are designed to run on the users' respective operating systems. It highlights the reliance on underlying operating systems for the functionality of applications and other software. The specific operating systems in question would typically be understood from the context or explicitly mentioned elsewhere. The phrase emphasizes the active role of operating systems as the tools or platforms enabling certain actions or processes.