The ultimate: Swade and Co. are building Babbage’s Analytical Engine–*complete* this time!

Various computer historians, including Charles Babbage’s son, built pieces of Babbage’s Analytical Engine, but none built the whole thing. Doron Swade and colleagues are planning on finally building the whole thing for the London Science Museum! They have a blog for their project, called Plan 28, where you can read about their progress.

Here is John Graham-Cumming in a TEDx presentation from 2012 talking about some of the history of the Analytical Engine project that Babbage and Ada Lovelace engaged in, in the mid-1800’s, and the announcement that Cumming and others are going to build it. Very exciting! I got the opportunity to see the 2nd replica that Swade and his team built of Babbage’s Difference Engine #2 at the Computer History Museum in Mountain View, CA, back in 2009. I’d love to see this thing go!

Related post: Realizing Babbage

What are the best examples of software bugs that became features (a.k.a. misbugs)?

I’ve been spending quite a bit of time on Quora lately. This is one of the better questions I’ve seen on there in the last 7 months.

Bugs represent defects in a program, though in some cases the unintentional consequences are users might have a use case for such flaws the developer originally didn’t think of.

Some bugs graduate from being defects to growing into official fully supported features.

What are the best examples of this in software history?

What are the best examples of software bugs that became features (a.k.a. misbugs)?