A deep-space research satellite is programmed to transmit raw digital images of stellar phenomena back to Earth. The satellite's narrow-angle camera captures rectangular scans that are 2048 pixels wide by 1250 pixels high. To map the elements present in a nebula, each pixel is assigned one of 40 distinct spectral colour values representing different chemical emission lines.
Determine the minimum file size, in kilobytes (KB), of a uncompressed scan. Show your working clearly.
26 exam-style questions on AQA GCSE Computer Science Representing images. Each one has a worked solution and a mark scheme showing where the marks go.