Answer:
You have to remember their name on here
Explanation:
If u dont you cant talk to them again
The answer to your question is a
Software problem.
Assuming "Software" is one of the available answers.
Answer:
It represents a threat of instrument change.
Explanation:
Internal validity is a method to determine if research has been performed properly. It is based on the number of confounding variables present in the experiment. If an experiment is carried out and confounding variables are avoided, the internal validity is high, and viceversa. In an ideal context, the experiment's internal validity will be high, which will mean its results will be trustworthy.
The students, by making use of a computer software, lowered the validity of the test performed by the teacher.
The difference is that system on a desk top preforms all the basic tasks like file management, memory management handling input and output and controlling peripheral devices such ad disk and printers where as some smart phone work on specific hardware