An automated environmental monitoring station transmits the status log message SYSTEM ONLINE AND SECURE to a central server. Using Huffman coding, this message can be compressed and stored in 91 bits.
Calculate the number of additional bits required to store the exact same status message using standard 8-bit ASCII characters. Show your working.
37 exam-style questions on AQA GCSE Computer Science Data compression. Each one has a worked solution and a mark scheme showing where the marks go.