Premise:
"At the press conference, Ballmer outlined Microsoft's challenges and listed several members of the company's leadership team who would work with chief architect Gates to integrate the company's products and services."
Hypothesis: Gates was chosen as chief architect from a huge pool of qualified applicants.

it is not possible to tell

Premise:
"The Germans are so efficient."
Hypothesis: The Germans use all kinds of technology to help with their work.

it is not possible to tell

Premise:
"I didn't know anyone with a DOS system in the early '80s, but I knew plenty of people with Commodore 64s, TI 99-4As, Apple IIs, computers by Tandy, and even Timex--all with distinct and incompatible operating systems."
Hypothesis: He knew plenty of people that had a Commodore 64 in the '80s.
yes