John Walsh 
National 4 & 5 Computing Science [EPUB ebook] 

Provides full coverage of the National 4 & 5 course and is endorsed by SQA.This comprehensive textbook provides full coverage of the Computing Science courses offered by the Scottish Qualifications Authority at both National 4 and 5 levels. The book is divided into two core units of the syllabus, Software Design and Development and Information System Design and Development, and is attractively designed in full colour throughout.- The first comprehensive book for National 4 and 5 Computing Science- Written by the bestselling author of 'Standard Grade Computing Studies’