Dave Plummer, a former Microsoft Engineer.

From Dave's Garage on YouTube:

• Secret Studio Tour: 500,000 Subscriber Spectacular! on 2023-09-04.
• We asked a Retired Microsoft Windows Engineer 100 Questions! Why oh Why? Find out! on 2021-03-01.
• The Mind Behind Windows: Dave Cutler on 2023-10-21.
• Windows at 1000 Frames Per Second: The Raymond Chen Interview on 2023-11-25.
• Everything you SHOULD know about your Computer but don't! on 2022-02-06.
• Things You Can't Unsee: My Shop! on 2023-02-24.
• Top 5 Tiny PCs: We Test Them from Smallest to Most Powerful! on 2024-01-22.
• About the KIM-1:
  • I Bought the Oldest PC on eBay! Unboxing the KIM-1 on 2022-04-18.
  • Microsoft's First Product: Recovered from the Original Source Code! on 2022-04-28.
  • Computer Stuff YOU Should Know! on 2022-05-04.
  • Inside the 1977 KIM-1: CPU, Video, RAM, ROM and more! on 20220-05-11.
  • RETRO C 1977: a C Compiler for the KIM-1 on 2022-06-06.
  • The Most Powerful PC of 1977: Best of the Best! on 2022-06-17.
  • Vintage KIM-1: Disaster to Redemption on 2023-04-23.
  • Coding Graphics in C: SetPixel, LineDraw, Moire and More! on 2023-04-24.
  • C and Assembly Language: How To! on 2023-04-26.