Factors That Influence Cost: Hardware and Software Age of the technology. Aging computers may be designated as single-use machines, but reliability becomes a problem. Older computers may not be able to run necessary software or interfacing with the network. Businesses often replace computers on a three-year cycle but schools may be able to stretch this to five years. Number of computers. Having more computers increases the need for support, software licenses, peripherals, and consumable supplies. Having fewer computers impacts your student per computer ratio and may increase the time necessary for integrating technology into the curriculum. Number of platforms. Schools or districts that limit computer purchases to a single platform may reduce support and maintenance costs; however, curricular needs may dictate the purchase of software that does not run on a given platform. Plan for Success This school story is based on the experience of a real school. Choose the download option that best fits your connection. Slow modem (Text and graphics only) Flash presentation with audio (requires Flash plug-in) Number of software applications. Each software application may have its own requirements for training, system set-up, or peripherals. Districts that use multiple versions of a similar application or whose staff use alternate versions of the application between work and home may encounter file conversion errors or need to duplicate files for multiple applications. It may pay to take advantage of bulk licensing agreements or set standards for staff and student work file formats.