That arithmetic, not the marketing, is the honest answer to why do schools use Chromebooks. Chrome OS took over US K-12 shipments during the 2014-2020 stretch and has held roughly half the market since, according to Futuresource Consulting shipment tracking. And any school already paying for Microsoft 365 A3 across staff and students has already bought the Windows management stack, which changes the arithmetic considerably. Chrome OS assumes reliable network access as a design premise. A structured look at IT asset management practice covers the record-keeping model that sits underneath any one-to-one programme.