CAMBRIDGE IGCSE Topic 1.3 Lossy and lossless compression methods Also in this topic... CAMBRIDGE IGCSE Topic 1.1 Number systems CAMBRIDGE IGCSE Topic 1.1 Converting between number systems, part 1 CAMBRIDGE IGCSE Topic 1.1 Converting between number systems, part 2 CAMBRIDGE IGCSE Topic 1.2 Representing characters and character sets CAMBRIDGE IGCSE Topic 1.3 Compression