Which age range do most high school students fall within? What is the age range of children who are considered to have grown during the computer age? Is #1 similar to #2?
Yellow pages
High school students are between 14-19 years old.  Teenagers now are considered 'digital natives'.  'Digital natives' are individuals who have grown up during the computer age, being exposed to technology from early childhood.
Telephone directory of businesses by category
Would it be uncommon for a high schooler to use the yellow pages?