[protomyth]

According to one book (Hackers?), he wrote the loader code for BASIC for the Altair on the plane to NM.

If I remember right, he did have a Compaq "portable" he lugged around in the early portable days. Something like http://oldcomputers.net/compaqi.html

It obviously came out after DOS / FAT.

[TheCoelacanth]

That was Paul Allen, if I remember correctly.

[protomyth]

I'm pretty sure it was Bill Gates (although Paul Allen could of too). I thought the source was a Chaos Manor column back in the day.

[RockyMcNuts]

nah... they decided Paul should go because Bill still looked like he was a high school sophomore.

http://harvardmagazine.com/2013/09/walter-isaacson-on-bill-g...