Exam OCR Level & GCSE Computer Science First September 2016 First June 2018 Closely matched to the Grade 9-1 GCSE OCR Computer Science specification, these CGP Practice Papers are the most realistic way for students to prepare for the exams. This pack contains two complete sets of exam-style tests (that’s four papers in total). We’ve also included a detailed answer booklet with full mark scheme to make marking easy.