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.
Practise AQA GCSE Computer Science Representing images with exam-style questions for GCSE Computer Science. 43 questions, matched to the AQA GCSE Computer Science (8525) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.