Jonathon Prior of New Malden, Surrey gained a grade D after studying at Ryde College in Watford, which specialises in teaching technology to young children.
"We are very proud of Jonathon's achievement. I would not say he is gifted or anything like that, it is the way that he has been taught that is special," said his mother, Rehena Prior.
Prior took the A-level after gaining a grade A in his GCSE IT exam last year.
Meanwhile, a 13-year-old has became the youngest person to obtain a qualification in computing at Cambridge University. Anne-Marie Imafidon, who was awarded a scholarship to study at Cambridge by the Lyceum Institute of Technology, wrote complex programs on an Oracle database during her course.
Imafidon became the youngest girl to pass A-level computing at the age of 11. A gifted student, she builds websites for voluntary organisations and speaks more than six languages.
l The number of students taking A-level computing rose this year from 26,780 to 28,175 - an increase of 5%. The proportion of students gaining grade As rose from 8.5% to 8.6%.