Examples of hardware include screens to show information and buttons, keys, or dials to enter data. Software functions are packages with particular functions, similar to an internet browser or recreation. A particular person might use a mouse to click on a button displayed in a web browser to navigate to a model new internet web page. Computing systems convert instructions, similar to “print,” “save,” or “crop,” into a special language that the computer can perceive. At this stage, understanding that pc information is encoded is appropriate, however the express understanding of “bits” is reserved for later grade ranges.

As students progress, they should consider the preferences of individuals who may use their merchandise. Students should be ready to evaluate the accessibility of a product to a broad group of end users, corresponding to individuals with numerous disabilities. For example, they might discover that allowing an finish consumer to vary font sizes and colors will make an interface usable for people with low imaginative and prescient. At the higher grades, college students should become aware of professionally accepted accessibility requirements and should be ready to consider computational artifacts for accessibility.