If you are experienced with the installing of the Operating system and know your way around the windows XP or Vista operating system you could study for the XP or Vista MCP certification. That is the easiest one. After that I would suggest the A+ certification. That proves you have a good working knowledge of both the hardware and software (OS) of a PC. The next one which gives you a good foundation would be Net+. Those are three good basic certs you can get that are very helpful in getting started in IT. I broke into the IT field after being a racehorse groom of all things. I had foot problems and needed a job where I was off my feet and I enjoyed working with computers. So I got my A+, then my Net+ then my XP MCP in that order. But if you want to go for the easiest first I suggest the MCP. It really does not matter what your degree or previous jobs were. If you can get the training and certs and are good at working with computers you can get into IT at one level and work toward whatever goal you wish. I started in a call center doing tech support and am now a Network Administrator/Exchange Administrator/DR planner and coordinator.
I’m not sure how much you know about computers, but a basic computer support job can help you get you some experience. Also getting a degree from an Technical insititution like ITT Tech would help.