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From WE Computers Museum
- company_name = Sierra | company_type = Brand name owned by [[Microsoft]]|44 KB (5,057 words) - 02:09, 18 April 2024
- ...ating system''', or '''OS''', is system software that manages hardware and software resources. ...l computers lacked operating systems. Tasks were controlled by switches or by plugs on a plugboard.7 KB (908 words) - 04:19, 22 September 2023