The Reg speaks to former Microsoft engineer Dave Plummer SmartDrive, DiskCopy... it's life at Redmond in the DOS era Richard Speed Wed 6 Jan 2021 // 09:10 UTC Share Copy Interview Everyone remembers their first time. It might be Commodore-flavoured, or carry a whiff of Sinclair about it. For former Microsoft engineer Dave Plummer, it was a TRS-80 in a 1979 Radio Shack. Plummer now runs a YouTube channel stuffed full of nerdery, though decades ago he played a role in the rise of Microsoft, contributed to MS-DOS, wrote Windows components familiar to all, and stuffed Microsoft Bob into XP's box. The Register had a chat with him about how it all began.