No it's the whole topic of technology which is not suitable in my opinion. For adsense you want mass traffic coming from non technical audience. So you can write off topics about technology if it goes beyond the stage of "how to send photos by emails" or "how to print an image".. The only OK content type would be the one targeted at extremely low level, so it's not about Photoshop tutorials, even basics ones, no.
Well that's my opinion about adsense money, of course you see many sites about technology and think they're doing fine. Well the sites you never see are the ones such as free printable greeting cards for all occasions, those are earning a lot but of course we're not part of their audience.. Their audience is massive and doesn't use ad blocker add-ons, this audience has problems with downloading the greeting cards and printing them, so the ad blocker firefox add on is pure science fiction for them, hell they don't even notice that the site has any ad, even though they clicked on them 3 times already in their short visit trying to make sense of how to print that greeting card..
Got my point?