Long story: I'm in a unit in the army that's job is to investigate crimes in the army (from drug usage to weapon thefts). Now, my current position is of an investigator, meaning I need to sit and investigate the people. There's a special unit in our unit that's in charge of fraud crimes and computer-related crimes and offenses, which I am hoping to get into. Problem is, they require a certain amount of knowledge in computer hardware, which I lack. I've started reading randomly in Wikipedia, but we all know how messy that can get (with every new term I don't know I open a new tab, and I get about a hundred tabs in 5 minutes ). So I was wondering whether anyone here could give me a simple explanation about computer hardware that I could base myself on, and also maybe give me some direction as to where I could learn more by myself. Short story: I need to learn about computer hardware. Can you help? Thanks anyway!