Individual displays can be monitored for balances of colour indicating flesh tones as one would find on adult-content sites. Maintenance Designing, building and supporting a network is not for the fainthearted One of the hidden costs of a network is ongoing maintenance. This includes the inevitable support issues, when machines break, or software gets corrupted. There are a number of approaches to minimise the inconvenience this causes to both the support staff and the user. Desktop management software can also be used to control what users can see, for example you may wish to restrict access to the floppy disk drive to prevent viruses being distributed.
Remote management is also an important consideration.
It is much better if machines can be modified and monitored by the administrator across the network, without the need to physically attend the computer. This can save time and energy, especially if computers can be forced to reinstall themselves using the network to a known working state. Settings as described above can be time-consuming initially to set up, but ultimately can be a worthwhile investment. Conclusion Designing, building and supporting a network is not for the fainthearted, and is not something teachers want to do in the face of other commitments. However, at the same time it is increasingly a need for schools to offer such facilities.