IGCSEs were introduced in 1988 and are internationally recognised qualifications. Candidates can sit IGCSE examinations all over the world. Offering over 70 subjects, IGCSEs are taken in over 120 countries. IGCSEs do not include coursework. Similar to GCSEs, they are perceived by some as academically more rigorous, and for this reason have recently been adopted by over 300 independent schools in the UK. In February 2009, 16 Cambridge IGCSE syllabuses received accreditation from Ofqual, the government body that regulates qualifications, exams and tests in England. IGCSEs are widely accepted by universities and colleges as part of their entry requirements. IGCSEs are offered by Cambridge, Edexcel and AQA exam boards and you can find more information about them on the web pages linked here.