K-12 schools and school systems host some of the largest populations of Apple computers in the world. School system administrators face the challenge of centrally managing thousands - or tens of thousands - of machines across multiple locations, with strict budgetary control. Unless some sort of client management system is in place, many people work nights and weekends to keep the machines up and running during the school week. When shipments of computers are received, an efficient system is required to image those machines with the proper loads of software and get them out to the end users. Once the machines are out there, in teacher and student hands, mobile carts, or labs and libraries, they need to be maintained and updated regularly to keep them working for educational goals instead of becoming a hindrance to classroom activities.