In the past, most educational technology programs arrived on compact discs and had to be loaded either on individual machines or into a central server at a school. Increasingly, software is delivered via the web (Cloud computing) through a web browser.
The most popular web browsers include: Chrome (from Google), Safari (from Apple), Internet Explorer (from Microsoft), and Firefox (from Mozilla).
There can be, at times, mismatches between the age of a web-browser and education-technology applications. For instance, older browsers may have poor support for evolving web technologies (see HTML5), or may not have all the components (often called "plug-ins") needed to effectively run the most recent version of an edtech program.
Certain browsers, such as Chrome, are set to automatically update themselves, which reduces the likelihood of running older browsers. Keeping browsers up to date is high on the list of important school IT tasks.