This type of use is virtually self-assessing. Either the task is accomplished more efficiently with technology, or a decision is made to return to the traditional method of doing it.
Computer literacy involves teaching about computers as a subject in itself.
To evaluate this type of teaching, standardized factual tests on computer knowledge can be developed, and student performances can be compared. Computer-assisted instruction requires developing software which replaces or supplements the teacher's traditional role. The student is expected to learn a certain topic, or even a complete course, by studying computerized materials. To evaluate this type of instruction, student performance on standardized tests can be compared with the performance of students receiving traditional methods of instruction in the same subject matter. The use of computer technology as a cognitive tool requires a more complicated evaluation process.