Computers have a profound impact on the way that people work around the world. The freedoms that a computer can provide are quite staggering. Computers perform a huge variety of tasks for all manner of professions. They can be used for research, writing, modelling, drawing, programming, creating inventories and many other tasks. Computers have influenced the culture of work, in that for many jobs, people now expect to sit at a computer for most of the day. They are increasingly a major feature of education, with school students across the world using computers on a daily basis.