Evaluates the performance of different methods of data compression coding in several situations. Huffman's code, arithmetic coding, fixed codes, fast approximations to arithmetic coding, and splay coding are discussed in terms of their speed, memory requirements, and proximity to optimal performance. Recommendations for the best methods of…

This study investigated the current and projected needs of 42 school districts in Nassau County, New York, for data processing and educational computer services, current sources of computer services, needed improvements in services, and long-range needs. Analysis of districts' needs for computer services found that the majority of districts needed…