An IT essay requires accuracy, clarity, and consistency in presenting ideas aimed at resolving information technology problems. How you choose your topic would decide interest among readers. As a student, you might have limitations in terms of implementing ideas. You need to work on them and present a package that would provide useful information to a lot of people. There are several aspects you would need to look into before you start on an IT essay.
The first step is to choose the right topic as mentioned earlier. If you are a student, it would be better if you chose a topic you have worked on during practical assignments covered in the lab. Work on extending the project or make this information systems essay a part of it. It would give you insight as to how you could cohesively present new ideas developed on a software platform or through related programming code.