The process took 4 days. I interviewed at Arm (Cambridge, East of England, England) in Apr 2011
Interview
I applied online and was passed to ARM by a recruitment agency. This was the initial interview preparatory to an F2F interview. The interviewer was very friendly and unintimidating, and the interview consisted entirely of technical content with just a few simple motivational questions. The style of the interview made me feel far more confident and I believe I was able to give a better account of myself than I might in front of a large group of people.
There were no "What is your worst weakness?" or "Why are you leaving your present job?" - type questions.
I applied online. The process took 1 day. I interviewed at Arm in Mar 2011
Interview
I knew about the company during a career fair in my university. I applied for a position through their web site, and then received an invitation for a phone interview. The day of the interview they called me on time, then they asked me to talk about my projects and about my experience. Then they asked general Operating Systems questions (read/write locks, shared resources), and also some C language-specific questions (volatile and static keyword).