Download or read book OCR Computing for Gcse - A451 Computer Systems and Programming Revision Guide written by Alan Milosevic and published by . This book was released on 2013-04 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revision guide has been written specifically to support work done throughout the course in A451 - Computer Systems and Programming. It is not intended to replace a first class textbook but when used properly will provide an excellent supplement. The revision guide is divided into chapters and sections. Each chapter and section reflect divisions in the original OCR specification for A451. Notes are distributed throughout the guide usually immediately after each section heading. These notes are then followed by a range of questions taken directly from OCR past papers, together with the examiner's mark scheme solutions.