Microsoft BASIC was the original Microsoft product, written by Paul Allen and Bill Gates in 1975. It was already wildly successful and the default microcomputer BASIC dialect by the time they had talks with IBM.
MS-DOS was originally 86-DOS, née QDOS, by Seattle Computer Products.
I was talking about Altair BASIC, Micro-Soft (as they were then called) first product and it was pitched to Ed Roberts (MITS founder) to run on his Altair before any code had been written on their (Micro-Soft's) BASIC interpreter. So I was absolutely correct to state they didn't have a product to sell there.
And yes, MS-DOS was originally a SCP product - however you've left out the important part: when Microsoft visited IBMs headquarters to sell their disk operating system after Digital Research struck out with IBM (though accounts regarding what happened there differ wildly depending on who you ask), Microsoft did not have a CP/M nor DOS clone at that time which is why they approached Tim Patterson of SCP and later bought the OS for a pittance compared to what Microsoft then licenced it for. Thus once again I'm completely correct to say Microsoft didn't have a product to sell.
I don't know why you and the former poster have gotten so hung up on who originally created MS-DOS since I was only discussing it's licensing to IBM. But hopefully you now understand the point I was making.
Microsoft BASIC was the original Microsoft product, written by Paul Allen and Bill Gates in 1975. It was already wildly successful and the default microcomputer BASIC dialect by the time they had talks with IBM.
MS-DOS was originally 86-DOS, née QDOS, by Seattle Computer Products.