This can be proven for any valid argument form using a truth table which shows that there is no situation in which there are all true premises and a false conclusion.
Founded in 1994, IntraLearn Software Corporation (ISC) is a pioneer of creating e-Learning and Knowledge Organization products for corporate enterprises, academic institutions, associations, government agencies and training suppliers.
So to recap... the first operating system on the IBM âPersonal Computerâ (âPCâ) which debuted in August of 1981, was DOS, aka 86-DOS. DOS was a product of Microsoft Corporation, which was founded by Bill Gates, Paul Allen and Steve Ballmer. RESOURCES. IBM Personal Computer Product Fact Sheet.