I know the English use 'redundant' where we USns would say 'laid off' but the question came up whether they would use 'redundant' where we would say 'obsolete' in reference to, say, a 5-year old computer.
Let's back up a bit and discuss what David's taken for granted. In AmE a company can lay off its employees but in BrE a company (or a university!) makes its employees redundant. What's a little confusing is that you can be laid off in the UK too, but it means something different. According to this site (among others) a lay-off is expected to be temporary, as opposed to a redundancy in which you really, really lose your job. But this is not the understanding in AmE, where being laid off is the equivalent of BrE redundancy.
In answer to David's question, objects can also be made redundant in BrE--if they've been made worthless, particularly because they've been superseded by something else. Both Better Half and I feel like this is not quite the same thing as obsolete, but we're a bit hard-pressed to explain exactly why. Do others have this intuition?