The quiz, part five: it's so 20th century..

Let's get the answers to yesterday's questions out of the way:

7) Lift it about three inches and drop it. The reason: the lack of a fan (at the insistence of the Apple chief executive at the time - following a trope he seems to have repeated many times subsequently) meant that during normal operation the chips would pop slightly out of their guards. Dropping the machine reseated them. Read more here.

8) A muffer. It's a 1960s IBM concatenation of "memory buffer".

And now, today's questions.

9) IBM was incorporated in 1911, but what was it called?

10) In web page design which RGB color value isn't guaranteed to look solid on all platforms?

Answers tomorrow. If you want to see the preceding questions and answers (right back to the first), click the "Challenges" hyperlink by the post title above.