Beware not to buy HP Prime, if you are engineer!

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Naturally the keyboard is a really big part of the whole. If you do not have inputs then you can not get outputs.

I must say that I haven't seen the prime at live, but what I can recall from the pictures it is guide a bit smaller than 50g and the enter is definedly in better position, while I'm not "ENTER aficionado" as some older folks here. Technically it should be possible to push the 50g to DM42 housing.