<p>Children
are the dream of parents. Children ADHD is a bygone and chronic disorder which
leads to problems in children. If not solved in childhood stages will continue
in future till adolescents. The disorder consequences are difficulty to study
the tasks which are related to anxiety, depression and other
psychological problems. Hence the disorder must be resolved in the
early stage to control any type of consequences in future for our
children. The medical field is an eminent area in today’s world such
as signal processing, Imaging, MRI, EEG etc. to diagnose
and offer treatment. Even technology field too contributing to ADHD
children by providing different techniques in different areas such as IoT,
mobile, Robot, Application, virtual reality, augmented reality, machine
learning techniques etc. to give diagnosis and treatment methods. The
paper reviews and summarizes the set of features, diagnosis methods,
treatment rules for ADHD children.</p>