Unassuming young man in a black sweatshirt with hood over his head is in the corner of the room fixed on the screen, and the most worn keys of his keyboard are braces and semicolon. It's a hacker and right now is rifling your bank account. This is a common concept layman has about people from this subculture. See the definition from a dictionary: "a person who circumvents security and breaks into a network, computer, file, etc., usually with malicious intent: A hacker got into my computer remotely and wiped my hard drive!" .
The word hacker had in Middle English similar meaning as craftsman, who was able to make his own things (sometimes with negative meaning, when bantering things he does not understand). Only when those journeymen started to twit the first computers, they found its untapped potential and gradually expanded the idea of hackers, as we see it in movies.
The word hacker in the modern day meaning extended in the 1960s at MIT (Massachusetts Institute of Technology) as a term for people who deal with the hardware as a hobby and has spread to artistic circles. We refer it to the people who use resources in an unconventional way, who look for imaginative ways.
One group of hackers works with software development, others are mainly into hardware, there is a growing group of makers (these are mainly people from 3D printing), but there are also travelers (Travel Hacking, anyone?) and cooks (food hacking). So what do hackers carry in their pack-sacks?
Take a look at the photo series from the hackerspace Progressbar in Bratislava, Slovakia. Concept and production was secured Ivana Laila Drobna, a member of Progressbar, and young nifty photographer Martin Haburaj.
(in those published articles are also list of those things, if you can't recognise something)